WICHITA (AP) – Wichita police say a man shot his grandmother and her husband before killing himself.

Police Lt. Scott Heimerman said Monday that 39-year-old Adrian Urbano shot 78-year-old Bertha Ellis and 77-year-old Daryle Ellis then shot himself. Ellis was Urbano’s grandmother.

Heimerman says police have an idea for a motive but he would not release it.

He says the handgun Urbano used was recovered at the scene.

The Wichita Eagle reports the shootings apparently happened Thursday evening but the bodies were not discovered until Saturday.