In 1990 the Glasgow Times called Martin "Hammy" Hamilton Scotland's most hated criminal. Hardly anyone disagreed, the film says, apart from Hamilton himself. This is the story of how he earned the name, and how he ended.
Too frightening to convict
In 1984 Hamilton was jailed for six years for assault to severe injury. After that, the police struggled: as many as 12 High Court cases against him collapsed, usually because witnesses were too scared to give evidence. In 1990 he was shot twice near his home, and survived.
In 1992 he was one of four men convicted of conspiring to rob a Dunfermline Building Society branch at Anniesland Cross. The gang had broken in overnight with knives and an imitation gun to wait for the staff. Armed police were waiting for them. Hamilton got nine years.
Edinburgh
Released in the late 1990s, he moved on Edinburgh's heroin trade, in areas like Broomhouse, Wester Hailes and Sighthill. He ruled his dealers through terror. One of his enforcers cut off a young man's finger and tried to gouge out his eye with a teaspoon. A businessman he extorted said he would rather pay another £30,000 than give evidence.
His downfall came from a teenage couple. They had been held for 11 hours in a flat in Anderston, scalded with boiling water and stabbed. They testified. In November 2000, at the High Court in Inverness, 200 miles away for the witnesses' safety, Hamilton was convicted of drug dealing, abduction, assault and torture. The judge told him he took sadistic pleasure in inflicting pain. A senior detective called him the most dangerous criminal they had ever seen.
The shallow grave
Paroled from HMP Shotts in September 2014, Hamilton disappeared the following year. In December 2015 a dog walker found his remains in woodland near the Five Sisters business park in West Lothian. Only his skull and parts of his spine were in the grave.
A Liverpool-born man, James Farrelly, was charged with his murder in January 2017. He never stood trial: he was released from prison dying of cancer and died days later. The case against him was never tested in court.
Hamilton's funeral drew a handful of mourners. One underworld source said no one wanted to work with him: he was definitely Scotland's most hated criminal.