Police are investigating a suspected murder-suicide in Tsuen Wan involving a 26-year-old man and 42-year-old woman. The man jumped to his death from Block 2, Tsuen King Garden, on Saturday. His body was found at about 11pm. The body of the woman was later found in a bedroom of a flat in the building. Police said the man and woman knew each other. It was suspected the man jumped after attacking the woman with a knife, they said. Postmortem examinations would be conducted today. Tsuen Wan's district crime squad is handling the case.