Michael James Mayo was 15 and active in football, cross-country and track when he was found dead on a rural Henryetta, Oklahoma, property on April 30, 2023. He was one of six people discovered fatally shot in the head at the site; some victims had multiple gunshot wounds.

The search that led to the discovery began for two missing teenage girls, Ivy Webster, 14, and Brittany Brewer, 16, who had been visiting Michael’s younger sister, 13-year-old Tiffany Dore Guess. The bodies found included Michael, his mother Holly Guess, his sisters Tiffany and 17-year-old Rylee Elizabeth Allen, and the two visiting girls. The property belonged to Jesse McFadden, 39, a convicted sex offender who was married to Michael’s mother; McFadden’s body was also found there, having died of a self-inflicted gunshot wound.

Investigators reported the killings occurred just before McFadden was due in court on May 1, 2023, on charges of soliciting sexual conduct with a minor and possession of child pornography. Michael’s grandmother, Janette Mayo, said the family felt the system had failed to protect them.

If anyone has information about Michael, his family, or the events leading up to April 30, 2023, please come forward.