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 Devout Christian Isaiah Marin (left), 21,  allegedly hacked 19-year-old Jacob Crockett (right) with a sword because of the victim's interest in witchcraft
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Isaiah Marin, 21, is charged with first-degree murder in Oklahoma in the attack that killed 19-year-old Jacob Crockett
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Crockett, the son of an Oklahoma Highway Patrol trooper, suffered several stab wounds and had his head 'mostly severed' from his body
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Marin is described as a 'heavy drug user' and 'religious zealot' and was said to had sparred with the victim in the past
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Marin was furious at Crockett for his interest in witchcraft, which he saw as contrary to his Christian faith, court records show
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