A court heard today how a man accused of murdering Daniel McAnaspie was wearing a stab vest the night the teenager was killed.
Richard Dekker and Trevor Noone, both from Whitestown Avenue in Blanchardstown, deny killing Daniel at Tolka Valley Park on February 26, 2010.
Despite initially denying any involvement, Trevor Noone eventually told gardaí that he witnessed Richard Dekker killing Daniel.
He accused him of luring the teenager into a dark park and stabbing him with a garden shears.
During questioning, Noone portrayed his childhood friend as a bully with a sadistic past.
He described how Dekker had locked him in a garden shed when he was just 10 years old and poured hot wax over his body.
He also told detectives how he once put his cat in a tumble dryer and how he randomly stabbed a disabled man on another occasion.
According to Noone, Dekker was wearing a knife vest on the night Daniel was killed.
He also described how he feared for his life when he noticed a red-eyed Dekker holding an axe when they met to discuss what to do with the body.
The trial continues before Mr Justice Paul Butler and a jury of seven men and five women.