Pinyan previously lost the ability to experience certain sensations after suffering from a motorcycle accident, and became involved in increasingly extreme sexual acts such as dildos, fisting, and sex with horses. He was a part of a group of men who received anal sex from horses and sometimes had sex with one another afterwards.
The incident occurred at a 40-acre (16 ha) farm,[13] located in an unincorporated area in King County, Washington,[14] northwest of the city of Enumclaw.[13] Pinyan, and a man named James Michael Tait (who lived in a trailer next to the farm), plus another unidentified man, often visited the farm to engage in sexual intercourse with the horses inside.[2]
Prosecutors later determined that the horse had not been injured by being forced to engage in sex in this manner.[14][15] According to the Medical Examiner's Office, Pinyan "died of acute peritonitis due to perforation of the colon",[13] and the death was ruled accidental.[16]