A Window cleaner injected friend with fatal dose of heroin. A WINDOW cleaner who gave his friend a fatal injection of heroin was behind bars today. A trial heard how amateur footballer Michael Drew, 26, began jumping about after a jag into the back of his hand, slapping his arm and shouting: "It's brilliant."But soon after his first experiment with injecting heroin he collapsed into a coma and never recovered consciousness. Neil Pollock, 27, who dialled 999 to bring emergency services to his home in Haddington, East Lothian, blurted out: "I killed him. It was me. It was my fault," when police began to question him. But at the High Court in Edinburgh he tried to blame a local drug dealer who he said was the source of the heroin. Today Pollock collapsed weeping in the dock when a jury found him guilty of culpable homicide. The trial heard how the two men both worked cleaning windows.