Four people found dead in a Welwyn Ave. house the day before were killed in a triple murder-suicide, police announced on Thursday.
Det. Sgt. Pauline Gray told a press conference the deaths were due to domestic violence, adding she was confident the killer was from inside the home.
“This family has suffered an incredible tragedy, one that most of us here will fortunately never, ever have to encounter,” Gray said.
“Any public safety concern should, at this point, be alleviated, and I ask that you allow that this family grieve with dignity and grace.”
Neighbours said Wednesday that Keith and Wanda Delong lived in the home along with their adult son, Richard. It is believed that their daughter Elizabeth was visiting.
Numerous media reports, citing police sources, said Keith Delong supposedly killed his wife, children and then himself.
Toronto Police released a man Thursday whom they had arrested the day before in connection with the case, confirming he had reported the crime after stumbling on the scene.
Gray repeatedly declined to comment on matters such as motive, who the killer was, exactly when those in the house were killed, and how they died, saying the investigation was only in its infancy.
Post-mortems will be done on Saturday. The identities of the dead will not officially be confirmed until police notify next of kin.