Book excerpt: Peter Manuel was an icy-eyed psychopath and sexual predator, a petty thief and a relentless liar given to violent and uncontrollable rages. His unprecedented crimes presented the Scottish police and public with a new sort of criminal: the ruthless serial killer. Manuel was hanged at the age of thirty-one and convicted of seven murders, but suspected of many more. He slew many of his victims as they lay sleeping in bed, while others were picked up in lonely places and strangled or savagely beaten to death. Right up to his final arrest, he played a taunting game with the police, mocking their bungling attempts to trap him and continuing to kill with impunity - that is until he was trapped by his own vanity and arrogance. This definitive definitive biography recounts Manuel's chilling story from his birth in the USA to the moment the hangman's rope snapped his spine in Glasgow's notorious Barlinnie Prison.