The Plausibility of Adaptations for Homicide

1 Introduction

People kill other people in every known culture around the world. The question is why. This chapter presents a new theory of homicide, Homicide Adaptation Theory, which proposes that humans evolved adaptations to facilitate killing. The new theory is contrasted with two competing conceptions of why people kill: The Byproduct Hypothesis and the Evolved Goal Hypothesis. Prior to presenting these competing views of homicide, we discuss the concept of “innateness” in relation to our conception of evolved homicide adaptations. 2 The Concept of Innateness from the perspective of Evolutionary Psychology The term “innateness” is used to refer to many different phenomena (see Elman, Johnson, & Bates, 1996). Our conceptualization of innateness falls in line with the standard definition used by evolutionary psychologists and biologists when referring to any adaptation. Selection has shaped the genes that pattern human ontogeny. These genes provide the blueprint for the development of... ...

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Homicide in Black and White

Abstract

African-Americans are six times as likely as white Americans to die at the hands of a murderer, and roughly seven times as likely to murder someone. Young black men are Öften times as likely to be murdered as young white men. This disparity is historic and pervasive, and cannot be accounted for by individual characteristics. Culture-of-violence and tail-of-the-distribution theories are also inadequate to explain the geographic and demographic pattern of the disparity. We argue that any satisfactory explanation must take into account the fact that murder can have a preemptive motive: people sometimes kill simply to avoid being killed. As a result, disputes can escalate dramatically in environments (endogenously) perceived to be dangerous, resulting in self-fulflling expectations of violence for particular dyadic interactions, and significant racial disparities in rates of murder and victimization. Because of strategic complementarity, small differences in fundamentals can cause large differences in murder rates..

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Organized/Disorganized Continuum Phase 3 Individual Project Forensic Psychology

Physical and Behavioral Evidence Based Crime Scene Analysis

The crime scene analysis approach that is taken in profiling works under the assumption that the crime scene will reflect the personality of the perpetrator. FBI profilers have been able to identify the characteristics of the organized and disorganized rapists and murderers. (Thorton, 2002) The profiler’s will use information that they gather from the crime scene and reflect on the nature of the crime in order to produce a psychological profile that would be consistent with the offender in question. The offender can be classified as organized or disorganized based on the information they were able to obtain from the crime scene and other aspects of the crime itself.

“An organized offender is thought to be very intelligent, socially competent and very charismatic.” (Curt Bartol, 2012) The disorganized offender is described as being of average intelligence, immature socially and a loner by default....

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Multiple Murder And Criminal Careers: A Latent Class Analysis Of Multiple Homicide Offenders.

Abstract

PURPOSE: To construct an empirically rigorous typology of multiple homicide offenders (MHOs).

METHOD: The current study conducted latent class analysis of the official records of 160 MHOs sampled from eight states to evaluate their criminal careers.

RESULTS: A 3-class solution best fit the data (-2LL=-1123.61, Bayesian Information Criterion (BIC)=2648.15, df=81, L(2)=1179.77). Class 1 (n=64, class assignment probability=.999) was the low-offending group marked by little criminal record and delayed arrest onset. Class 2 (n=51, class assignment probability=.957) was the severe group that represents the most violent and habitual criminals. Class 3 (n=45, class assignment probability=.959) was the moderate group whose offending careers were similar to Class 2.

CONCLUSION: A sustained criminal career with involvement in versatile forms of crime was observed for two of three classes of MHOs. Linkages to extant typologies and recommendations for additional research that incorporates clinical constructs are proffered.

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The Self and the Psychology of Domestic Homicide-Suicide

Abstract

Men commit the vast majority of domestic homicide-suicides (H-Ss) wherein a person kills their intimate partner (and/or other family members) before taking their own life. Studies of men who commit H-S have looked at the act from psychopathology and evolutionary psychology viewpoints. To complement those approaches, this article presents additional views of domestic H-S. Applications of theories from social (escape from self), developmental (evolution of self and continuity of self), gender role (power and the male role), and family violence psychology (abusive personality and proximal antecedents of abuse) are outlined. These conceptualizations are offered because they pertain to instability and deconstruction of the self amidst the life changes and intimate distress that precede many cases of domestic H-S....

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Serving Survivors of Homicide Victims During Cold Case Investigations: A Guide for Developing a Law Enforcement Protocol

INTRODUCTION

Statement of the Problem

Advancements in DNA technology and other forensic investigative tools have enabled law enforcement agencies to reopen cases left dormant for years. Although the number of cold cases investigated by agencies on a nationwide basis each year is currently not tracked, the Federal Bureau of Investigation (FBI) does track the number of offenses cleared. In 2009, 66.6 percent of the 13,242 murder and non-negligent manslaughter crimes in the United States were cleared by arrest or exceptional means.1 While this is a significant clearance rate, it leaves many homicides unsolved each year. In response to the advances in forensic technology, many law enforcement agencies have established cold case units with the hope that reexamining evidence will help solve more crimes. As cases are reopened, investigators are contacting survivors of homicide victims. Although survivors may be grateful that their loved one’s murder has renewed attention, the reopening of a case can...

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Forensics With Sceneworks

INTRODUCTION TO THE CONCEPT

We all have experienced the immense power of a text driven search in the internet via search engines: once we know the right keyword, the search-engines will "find it all", BUT if we don't ...., the screen stays empty.

On a smaller scale: is part of your job description to be a shareholder in the process of crime scene investigation? If so, did you ever have to communicate results via "clever named" folders or file names?

Here's our background: as a manufacturer of high-end (full spherical) cameras, some of our customers in the past were indeed police-photographers. They used the camera to document crime scenes. They figured: "... see the glas of water there. I actually do know that we have found a fingerprint on it. Wouldn't it be great to allow everyone in our team to immediately access the PDF with the fingerprint analysis by a simple mouse-click on the glass?...

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Because the investigation of cold cases is usually an arduous and time-consuming task, most law enforcement agencies in the United States are not able to dedicate the resources necessary to I u iu u IIsupport the cold case investigation process. However, when those cases are fully pursued and prosecuted, they often result in convictions and lengthy prison terms. Cold Cases: Evaluation Models with Follow-up Strategies for Investigators, Second Edition saves law enforcement time by providing detailed guidelines for determining if a cold case is solvable, and if so, how to organize, manage, and evaluate the investigation. It also provides techniques for developing investigative strategies to complement the evaluation process and resolve the crime.

This second edition features a new revised model and methodology for investigating cold cases suitable for all police and public safety agencies—large or small, domestic or international. This new model is more expeditious and convenient for departments that have less...

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Three-Dimensional Reconstitution Of Bullet Trajectory In Gunshot Wounds: A Case Report

Abstract

In the med ico-legal assessment of cases of aggression with firearms, imaging techniques have a particularly important role, especially in the study of a bullet’s path through the victim’s body. The analysis of these trajectories can be performed by the use of three-dimensional reconstitution techniques, namely Three-Dimensional Multi-Slice Computed Tomography (3D-MSCT). This imaging technique has been widely used in fatal cases, as a very important complement of the classical autopsy procedures, becoming known as ‘‘virtual autopsy” or ‘‘Virtopsy”. To our knowledge, no reports describing the use of 3D-MSCT in nonfatal cases have been described in the medico-legal literature. The authors present a case of a man with a gunshot injury, in the context of a multiple aggressor situation, in which it was not possible to extract the bullet. To accurately determine the bullet’s trajectory, 3D-MSCT was performed, thus contributing to a more reliable reconstruction of the crime scene in which ...

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Need Drugs, Will Travel?: The Distances To Crime Of Illegal Drug Buyers

Abstract Available online xxxx Purpose: This study examines distances to crime among illegal drug buyers while controlling for buyer, drug, and destination characteristics.

Methods: Geocoded arrests for drug buyers in an urban municipality, over a three year period, spatially identify major drug markets. Negative binomial regression is used to model compositional characteristics of drug arrestees and contextual effects of markets on distance to arrest (n=4,082).

Results: Trip distance to drug purchase arrest varies by drug market. Being white, and having prior contact with the criminal justice system correlated with longer trip distances. Additional compositional effects vary by drug type.

Conclusions: In line with prior journey to crime research and crime pattern theory, illicit drug buyers are arrested in close proximity of their homes. Future research should consider the extent to which short aggregate market distances reflect policing differentials and close social ties...

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Bullet Trajectories at Crime Scenes

Recommended Procedures for Documenting Bullet Trajectory

Crime scenes involving the use of firearms present unique challenges for the crime scene investigator, but using relatively simple techniques it is often possible to reconstruct the events that give some indication as to what occurred during the actual discharge of the weapon. By this I mean it is possible to determine the actual path or trajectory of the bullets, and using this information, determine the location of the shooter.

A number of factors must be taken into account including the position of cartridge cases ejected from automatic and semi-automatic weapons. It is therefore essential that the exact position of spent casings be marked and documented before any other investigative procedures are followed.

Document (Photograph & Sketch) Positions of Spent Cartridge Casings

Photography is the first necessity so it is imperative that the crime scene be afforded absolute security. Until spent cartridges are properly recorde...

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Crime in Rural Areas: A Review of the Literature for the Rural Evidence Research Centre

1.1 Background

In August 1999, two men attempted to burgle a house in the village of Enmeth, Norfolk. The owner of the house, Tony Martin, had other ideas and upon entering, shot at the burglars, killing one of them. Martin was jailed for murder the following year (a sentence later reduce to manslaughter). A long-standing rural ideal is that the countryside is a crime-free place to live (Mingay, 1989). However, crime is by no means non-existent in rural areas. Nevertheless, until recently, the criminological literature has almost exclusively focused on cities and urban problems. The Martin case, received a great deal of media attention and prompted concern that rural crime problems were not being adequately addressed (Aust & Simmons, 2002; Jones, 2003; Mawby, 2004). In response, the 2000 Rural White Paper (DETR, 2000) placed crime in rural areas as a high priority area.

1.2 Research aims and objectives

This paper was a...

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What’s the Difference Between a Delusion and a Hallucination?

Delusions are a symptom of some mental disorder, such as schizophrenia, delusional disorder, schizoaffective disorder, and schizophreniform disorder. Hallucinations, on the other hand, tend to only appear in people with schizophrenia or a psychotic disorder.

Delusions

Delusions are false or erroneous beliefs that usually involve a misinterpretation of perceptions or experiences. Their content may include a variety of themes (e.g., persecutory, referential, somatic, religious, or grandiose).

Persecutory delusions are most common; the person believes he or she is being tormented, followed, tricked, spied on, or ridiculed. Referential delusions are also common; the person believes that certain gestures, comments, passages from books, newspapers, song lyrics, or other environmental cues are specifically directed at him or her.

The distinction between a delusion and a strongly held idea is sometimes difficult to make and depends in part on the degree of conviction with which the belief is held despite clear contradictory evidence regarding its veracity....

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Suicide And Psychiatric Diagnosis: A Worldwide Perspective

The World Health Organization (WHO) compiles and disseminates data on mortality and morbidity reported by its Member States, according to one of its mandates. Since the WHO's inception in 1948, the number of Member States has grown continually and so has the WHO mortality data bank. From 11 countries reporting data on mortality in 1950, the number of countries involved increased to 74 in the year 1985. More than 100 Member States reported on mortality at some point in time.

Data from developed countries (mostly in the North of Europe and of America, and a few countries of the Western Pacific Region) are received on a mostly regular basis. Most developing countries (in Latin America, Asia and in the Eastern Mediterranean Region) report on an irregular basis; very few countries in Africa regularly report on mortality to WHO.

Deaths associated with suicide are an integral part of the WHO mortality data bank...

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Modeling Criminal Distance Decay

Criminal distance decay is the fundamental notion that a relationship exists between the distance from an offender’s home base to a potential target location and the likelihood that the offender chooses to offend in that location. This relationship is important both for its operational effect on police agencies and on models for offender behavior. A number of factors influence the distance decay function of an offender, including the local geography and the offender’s decision making process.This article addresses a study of the interactions between the two-dimensional offense distribution that describes how offenders select targets and the corresponding one-dimensional distance decay function. It also present the calculation of the coefficient of variation for 324 residential burglary series in Baltimore County, Maryland. These data do not support the notion that the distance decay behavior of an individual offender is governed by a number of common choices for distance decay, including the negative ...

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Reviewing and Comprehending Autopsy Reports

Understanding the value of the autopsy report and the information accompanying it is a valuable asset to all investigators.

DEEPER INSIGHTS

Advances, Benefits and Challenges of Oral Fluid Testing in Forensic Toxicology

Voltaire said “To the living we owe respect, but to the dead we owe only the truth.” This is the definitive task of the medicolegal death investigator and forensic pathologist. The course of the death investigation has multiple phases including: scene investigation, body assessment, medical records, and the forensic autopsy. This is finalized in three documents: the death certificate, the investigator’s report, and the autopsy report. In order to understand the importance of the autopsy report, and how to interpret it, you should understand how all the other factors influence the report and why you cannot rely on the autopsy report alone.

An Overview of Death Investigation...

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