LEVITTOWN, Pa. — In 2020, Justin Mohn published his call to action online, arguing for a “hypothetical, violent revolution” against “traitor older generations” for the debt and unemployment burdening those who came after them. On Tuesday night, there was nothing hypothetical about the grisly crime that police accused the 32-year-old man of carrying out in his parents’ Bucks County home. Authorities say Mohn decapitated his father in the bathroom of their Levittown home, posted a YouTube video in which he spouted right-wing conspiracy theories and displayed his father’s severed head, then fled …
