TULSA, Okla. — An Oklahoma woman has been convicted of burglary and four other charges after she slashed the corpse of her boyfriend’s ex-girlfriend.

A Tulsa County jury deliberated about four hours before finding Shaynna Lauren Sims guilty of all five counts related to the mutilation of Tabatha Lynch’s corpse in a casket at a Tulsa mortuary.

Lynch had died of natural causes on April 30, 2015, of natural causes at age 38.

The jury recommended up to 16 years in prison when a judge sentences Sims on June 1. Witnesses said Sims assured Sims’ family and friends that she was a makeup artist who wanted to help prepare Lynch’s body for a funeral viewing. Instead, they said, Sims cut body parts from the corpse, stole her shoes and slashed the corpse’s face.