Convicted criminal and author whose books The Ferris Conspiracy and Vendetta created controversy over who should profit from works about true crime.
He was bullied by the criminal family the Welshes and was convicted of murder after stabbing a man to death in a pub.
In 2004, he was convicted of stabbing a 15-year-old boy to death.
He stated that "If anyone was born into crime, it was me. Crime is in my blood," while appearing on a television interview with John McVicar.
Another famous criminal from Scotland is Ian Brady, the man responsible for the Moors Murders.