After 18 years, the police put forward a possible motive for Alistair Wilson's murder.
Alistair Wilson's son, Andrew, speaks publicly about the murder for the first time.
The police investigation and theories about the murder.
How a family and a town deals with a violent unsolved murder, 13 years on.
The gun used in the killing, and possible links with Poland.
BBC Scotland's John Beattie’s account of a tip-off he got about the Alistair Wilson case.
The envelope given to Alistair Wilson by his killer before he was shot.
The events of 28 November 2004 when Alistair Wilson was shot three times.
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