Sticks and stones - 4

Fifteen years ago, a serial killer tagged by the media as 'The Stickman' spread terror throughout Alabama and became Alvin detective Joe Fowler's obsession.

After fifteen months and nine victims, Harry Stork was identified as The Stickman and Fowler shot him dead.

Then the killings stopped - for a while. Now, more bodies are turning up, each staked through the chest with a stick-figure drawing in the killer's signature style.