John Duffy and David Mulcahy Essays

Criminal Investigative Analysis, also known as criminal (offender) profiling, is an investigative tool which is used within the law enforcement community to help solve violent crimes. According to Canter (2005), an investigative psychology describes a framework that integrates several range of aspects in to all contexts of criminal and civil investigation.The analysis is based on a review of evidence from the crime scene and from witnesses and victims. The analysis is done from both an investigative

People often make a confession to crimes they did not commit. This can be attributed to a number of reasons. Psychologists believe because people are responsive to reinforcements and thus are subject to principles of conditioning. In addition, people are by nature social beings and vulnerable to influences from other people. Modern day police interrogations use these biological responses to their advantage to elicit conformity, compliance, obedience, and persuasion in suspects. Furthermore, the

John Duffy, also known as one of the railroad killers/ rapists, was known for his crimes and killings that he committed with a childhood friend named David Mulcahy. Both of them were born in 1959 which makes them 57-58 and they are still in prison but both are serving different sentences due to the officers that arrested them finding different things for both men and the jury giving them different sentences while they were tried; John Duffy is serving for two murders, four rapes which is roughly

Greater London in September 1970 , in the school’s playground. David Mulcahy was tall and quite an extrovert character, so he fitted in well with the other pupils. By contrast, John Duffy was very “peculiar looking” according to Stephen Wright, The Daily Mail crime editor who studied extensively on the pair. Duffy was “short, red-head and suffered from severe acne”32. Richard Priestly, a pupil who was in the same year as Duffy, said that Duffy would “always be alone at lunch and break, wearing the same