FULL TITLE: 'Religious zealot' Christian student 'decapitated 19-year-old friend because he thought he practiced witchcraft' A deeply Christian college student in Oklahoma allegedly nearly decapitated the son of a state trooper with a sword because the victim practiced witchcraft, police say. Isaiah Marin of Stillwater was charged Thursday with first-degree murder in the attack that killed 19-year-old Jacob Andrew Crockett a day earlier. The two had been playing cards with a third pal, Marin's brother, when Marin removed the 'large black sword' from its sheath and began swinging it around, court records obtained by MailOnline show. Scroll down for video