A self-proclaimed 'messiah' decapitated his 68-year-old father - then held up the victim's head in a politically-charged YouTube video blasting the federal government and the Biden administration. Justin Mohn, 32, is in custody in Pennsylvania after his father Michael was found by his wife, beheaded, inside the home that the trio shared in the quiet Philadelphia suburb of Levittown. Early Wednesday, the suspect was charged with murder in the first degree, abuse of a corpse and possession of an instrument of crime with intent. Hours before his arrest, Mohn held up what he claimed was his father's head during a...