“Ballistics testing proves that this is a weapon used to…” — Perhaps It's You at 38:00

Perhaps It's You S6 Ep8: 2000 Enemies

“Ballistics testing proves that this is a weapon used to shoot Jill and Julie. The authorities don't tell the family they found the shotgun and they watch the warehouse. A couple days later, a prowler is caught by police breaking in. It's the son, Donnie. He says that he had come to feed the family dog.”