Man drank poison before murder-suicide: The man who stabbed Comfort Amankwaah to death had already swallowed a poisonous mixture of chlorine before fatally stabbing himself in the stomach, police say. Detective Sergeant Dan Hayes refused to speculate yesterday if the chlorine meant Nelson Brefo had made plans to kill his estranged wife and himself. But relatives and friends of the 30-year-old victim say the murder-suicide on Murchison Crescent in Etobicoke Monday was "definitely" premeditated. - Toronto Star (Jul 15, 1990)