Robert Neill

Forty years after `The Snowman' was first broadcast, the story of how Raymond Brigg's classic tale was made and became a Christmas institution in over 29 countries, spawning hit singles, a cameo from David Bowie, and a host of snowy spin offs.

In 1984 six Glasgow family members died in an arson attack. Their murders were followed by one of Scotland's longest trials and a 20-year fight for justice that gripped the nation.