Four people were killed inside their home in Beaver County Sunday night.
A family of four was killed in what police say was a triple murder/suicide at their home along Shaffer Road in North Sewickley.
The parents, identified as Clifford and Michelle Hunter, were found dead at the scene when police arrived.
The two teenaged sons were life flighted to a Pittsburgh hospital with gunshot wounds to the head.
They both were pronounced dead later at the hospital.
Police believe 18-year-old Clifford Jr was the shooter, killing his parents and his 16-year-old brother.
Beaver County District Attorney Nate Bible says the investigation is ongoing.