“Between 30%–38% of psychopaths show abnormal brainwave patterns, or EEGs.”— Shirley Lynn Scott, fc.nghf.dk
“Many serial killers will keep ‘souvenirs’ of their crimes. For example, when Ted Bundy was asked why he took Polaroids of his victims, he said, ‘when you work hard to do something, you don’t want to forget it.”— Shirley Lynn Scott, fc.nghf.dk
“Almost all serial killers admit that they started by acting out their fantasies on small animals before they moved to humans and that animal torture brought them a great source of pleasure.”— Shirley Lynn Scott, fc.nghf.dk
“Many serial killers report having an abnormally strong sex drive and many fantasized about dead women rather than living ones.”— Shirley Lynn Scott, fc.nghf.dk
“Most serial killers suffered child abuse. Neglect and child abuse not only impair a child’s self esteem, they also interfere with his or her ability to function in society, succeed academically, and form healthy relationships with people.”— Shirley Lynn Scott, fc.nghf.dk
“A study that focused on a group of sociopaths who had been adopted as infants showed that the biological relatives of sociopaths were 4–5 times more likely to be sociopathic than the average person. Researchers note that it is easier for ‘bad seeds to blossom in bad environments.”— Harold Schechter, amazon.ca
“While many serial killers were abused or beaten as children, there are exceptions. Jeffrey Dahmer had an apparently normal upbringing, yet became one of the most horrible sex murderers in popular culture.”— Harold Schechter, amazon.ca
“Steven Egger, in his book Murder among Us, notes that serial murderers are frequently found to have an unusual or unnatural relationship with their mothers.”— Harold Schechter, amazon.ca
“Dr. Harold Shipman (1946–2004) is regarded as the most prolific serial killer in modern history, with over 250 murders ascribed to him. He was a British doctor who murdered his patients: the oldest was a 93-year-old woman, and the youngest was a 41-year-old man. He hung himself in his cell in 2004,…”— Harold Schechter, amazon.ca
“Men constitute the overwhelming preponderance of serial killers, at over 90%.”— Harold Schechter, amazon.ca
“A serial killer's motive is usually based on psychological, often sexual, gratification. However, the motives may also include anger, thrill, money, and attention seeking.”— Clifton Bryant, Dennis Peck, amazon.ca
“A serial killer is someone who has murdered three or more people over a period of more than a month, with a cooling-off period between murders.”— Clifton Bryant, Dennis Peck, amazon.ca