King County’s Major Crimes Detectives who are investigating the death of the 16-year-old boy whose body was found in the Green River on Sept. 10 are asking for help.

According to the King County Medical Examiner, Juan Carlos Con-Guzman, who had just started his junior year at Mount Rainier High School in Des Moines, died of of homicidal violence – multiple blunt-and-sharp-force injuries.

KCSO spokesman Ryan Abbott said anyone with information should call the King County Sheriff’s Office at 206-296-3311.

According to Abbott, two fisherman were walking along the bank of the river that morning in the 12700 block southeast of Green Valley Road when they saw a body in the water and called 911. The King County Sheriff’s Office Marine Unit recovered Con-Guzman later that afternoon.

Abbott said Con-Guzman’s family had filed a missing person report at some point before he was found in the river, though the KCSO has not to date released information as to when that happened or how long he had been in the water.