A mentally ill man from Valencia was killed by an unknown gun an early on Friday morning at his home.

Police officers said around 1:15 am a resident of Quarry Road, St Albans, Valencia told them he heard several loud explosions at his neighbour’s house and went to check on the mentally ill man only to find him bleeding on the floor.

The man identified as Winston Lemo, 46, was already dead.

Investigators found six spent shells in the house.

Neighbours told police they were puzzled as to why someone would have wanted to kill Lemo.

Sgt Samuel of Arouca Homicide is continuing investigations.