Police Beat

OPP officers were called to a Chatham Street home around 3:30 a.m. this morning for a male making threats

Police believe incident on Logan Lane was isolated and there's no threat to public safety

Detectives have been in contact with two other potential witnesses whose images were released on the weekend; victim remains in hospital

York Regional Police confirm three women and one man are deceased

Incident happened shortly after 3 a.m. Saturday near Centennial Beach playground structure

'They are not suspects, but police would like to speak with them,' says city police official

28-year-old male victim remains in hospital after suffering life-threatening injuries

Police cordoned off Dunlop Street West between Bayfield Street and Maple Avenue

Witnesses, including the driver of a red pickup, may have seen Robert Weiss in the area of Yonge and Green Lane July 12 ; Weiss has also been known to take public transit to Barrie to visit his mother

Male transported to Toronto hospital following incident on Second Street; police say there's no threat to public safety