A US truck driver who filmed a friend having sex with a stallion in an act that killed him has been charged with trespassing on a ranch used by bestialists, authorities said. Paul Tait will be the only person charged in connection with the death of his friend, who died of massive internal injuries after being sodomise by the horse at a stud farm near the northwestern US city of Seattle in July, police said. Tait, 54, was filming the antics during which a 45-year-old engineer with plane-maker Boeing, "received the injuries that ultimately led to his death," King County sheriffs said in an official report. He admitted sneaking onto a neighbour's farm in the middle of the night to have sex with animals in incidents that were videotaped. "Tait said he and (his dead friend) were never given permission to go on the neighbours' property in the middle of the night to have sex with their horses," sheriffs said. But while the reports show Tait admitted joining the dead man and another friend for repeated sex acts with horses, prosecutors said he could not be changed with cruelty to animals or bestiality. "No animal cruelty charges were filed because there is no evidence of injury to any of the horses," King County district attorneys said on the charge sheet. Bestiality is not an offence in Washington state, prosecutors said, and the third man allegedly involved in the incident was not charged because there was insufficient evidence placing him in the barn. If convicted, Tait faces a maximum one-year jail sentence and a fine of $US5000 ($6570). He is due to appear in court in the week of October 31. "No-one else is under suspicion and the investigation is now closed," Sergeant John Urquhart of the King County Sheriff's Department said. AFP You can imagine abit of horsey on girly stuff but this.......Ouch!