A jury that deliberated for less than 10 minutes has found a Pennsylvania man guilty of killing his stepdaughter and sexually abusing her corpse.

The Allentown Morning Call reports the jury in Easton on Friday afternoon found 54-year-old Gregory Graf guilty of first-degree murder in the shooting death of 33-year-old Jessica Padgett. He'll get life in prison without parole.

Earlier Friday, the jury watched videos Graf made of himself sexually abusing Padgett's corpse. They were shown on a screen facing away from spectators, but audio could be heard, including profane comments to her body.

Defense attorney Jack McMahon never disputed Graf killed Padgett last year. He argued the killing wasn't premeditated and said "something snapped" with Graf.

Prosecutors say Graf planned it out.