David Victor Canter is a psychologist that helped police on a case involving two serial killers who attacked numerous women and children in the south of what?
John Duffy and David Mulcahy John Duffy and David Mulcahy (both born 1959) are two British rapists and serial killers who together attacked numerous women and children at railway stations in the south of England during the 1980s. They are known as the "Railway Rapists" and the "Railway Killers".
John Martin Scripps John Martin (born John Martin Scripps, 9 December 1959 – 19 April 1996) was an English spree killer who murdered three tourists—Gerard Lowe in Singapore, and Sheila and Darin Damude in Thailand—with another three unconfirmed victims. He posed as a tourist himself when committing the murders, for which British tabloids nicknamed him "the tourist from Hell". He cut up all his victims' bodies, using butchery skills he had acquired in prison, before disposing of them.