Updated

A state patrol report may shed more light on the possibility that Cleveland kidnapper Ariel Castro died after an ill-fated attempt to choke himself for a sexual thrill.

The patrol's investigation into the death of Castro last month includes evaluating evidence that he may have died from autoerotic asphyxiation.

An Ohio prisons review of Castro's death released Thursday suggests that possibility, noting Castro's pants and underwear were around his ankles when found Sept. 3, and extensive evaluations in the previous days found no signs of suicidal behavior.

The county coroner is standing by her ruling of suicide, saying evidence at the scene points to Castro killing himself.

The 53-year-old Castro was just beginning a life sentence for imprisoning, raping and beating three women in his home for a decade.