A man posted a disturbing video in which he held up his father's decapitated head mere moments before the cops tracked him down and arrested him for the grisly murderA Pennsylvania man posted a video to YouTube showing the decapitated head of his dad before the police swarmed his home and arrested him. It remains unclear where he filmed the video, but it might have been inside the older man's home after the beheading took place. He also hinted at a social media post being what led him to the son but didn't specify whether or not it was the YouTube video that showed the severed head. Levittownnow reported that the man is 32-year-old Justin Mohn and that his father, Michael, 68, had been an employee of the federal government. "This is the head of Mike Mohn, a federal employee of over 20 years and my father.