A Pennsylvania man who was an apparent QAnon believer was arrested on Tuesday night after allegedly killing his father and decapitating the man's body. He then waved his father's head around in a YouTube video manifesto in which he railed against the United States government, among other grievances. Justin Mohn, 33, has been charged with first-degree murder, abuse of a corpse, and possessing an instrument of crime with intent after police found the dismembered body of his 68-year-old father, Michael Mohn. Officers responded to a 911 call placed by the victim's wife around 7 p.m. from the couple's Middletown Township, Bucks County home, according to 6 ABC News , after she arrived home to find her husband beheaded and covered in blood. At the scene, officers discovered the victim's body in a bathroom on the first floor, along with a machete and a large kitchen knife left in the bathtub. A police affidavit stated that his head had been placed in a plastic bag inside...