BROOKLYN - Two people are dead and one person is critically injured after an alleged murder-suicide in Staten Island.

Police say 86-year-old Heriberto Pagan, of Midwood, shot his grandson in the head outside of a Staten Island home last night before going inside and killing his grandson's girlfriend. They say Pagan then drove away from the scene and fatally shot himself in the head. He was found lying in his car.

Pagan's grandson is listed in critical condition at Staten Island University Hospital.

Pagan resided in his Midwood home for more than 30 years. The woman who has lived with him for many years says he was friendly and a great man, but did have some issues with his grandson. She says Pagan told her that he was going to Staten Island, and never came back.

Neighbors of Pagan's grandson say he was friendly and always willing to lend a helping hand.

A motive for shooting is not yet known.