Morphine and codeine are strong narcotic pain killers. Gangs like the Moyamensing Killers and the Blood Tubs controlled various neighborhoods. Authorities described Kuklinski as unusual amongst both mobsters and killers. Jeffrey Dahmer was one of the most notorious American serial killers, sex offenders, and necrophiliacs. The accident led to Parker's ultimate troubles with pain killers and opioids, especially heroin. Sadistic sexual fantasy is one of the key factors for understanding serial killers. In addition, she was addicted to alcohol and prescription pain killers and tranquilizers. In the eyes of the killers they were not human beings! Anbu helps Kumar by making him join a gang consisting of professional killers. It's better than being portrayed as killers. Allin was also fascinated with serial killers. This is a list of unidentified serial killers. His interviews have contributed to the understanding of the mind of serial killers. Yost adds that the characters are up against the worst killers on the planet. The Killers, My Chemical Romance, and Panic!