Only 14% of recorded serial killers are under the age of 20 when they start killing and Cody Legebokoff of Canada was one of them. A boy who grew up in British Columbia, he was popular, friendly and sociable with no hint of the violent and brutal behaviour that was to come.
Stephen Port, charged with four murders and now further charges relating to 8 surviving victims, is a man the media have dubbed the Grindr Serial Killer.
In 2016, Lonnie Franklin Jr, nicknamed the Grim Sleeper, was convicted of serial murder in Los Angeles, California. With murders committed between 1985 to 2010 the true number of his victims remains unknown.
The last person to be hanged in Western Australia, serial killer Eric Edgar Cooke terrorized the Perth suburbs with random killings before he was caught.