A deranged Arizona man chopped up his girlfriend with a chainsaw — then called 911 to confess, blaming it on her being “possessed,” according to charging documents.

Jeffrey Rael, 47, was found armed with a hammer and a cross when police arrived at the Phoenix home after he made the disturbing admission to a dispatcher before dawn Friday, according to court documents obtained by AZ Family .

Cops found a blood-soaked chainsaw in the kitchen — near the hacked-up remains of Rael’s long-time girlfriend, Paxton Wallace, 31, who was butchered beyond recognition.

Paxton Wallace, 31, was found slain in her Phoenix home on Friday, Nov. 7. GoFundMe

The body was covered in “cutting-type” injuries from a “sharp-bladed instrument,” Phoenix police said.

Rael had called 911 around 3:40 a.m., accor

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