16-year-old pleads guilty to murder of 10-year-old Kiaya Campbell 02/01/2019 11:22 am PST Comments KDVR By Chuck Hickey, KDVR BRIGHTON, Colo. (KDVR) -- The teenager accused of killing a 10-year-old Thornton girl pleaded guilty first-degree murder on Friday and is facing life in prison when he's sentenced next month. Aidan Zellmer, 16, was charged as an adult in the death of Kiaya Campbell on June 7, 2017, after they left her father's home to go to a shopping center. Neighbors found her battered body in a ravine the next day. She had been beaten to death, according to an Adams County Coroner's Office autopsy report. Campbell suffered multiple blunt-force injuries to the head as well as wounds to several fingers, according to an autopsy report. His mother was in a relationship with Campbell's father at the time. Zellmer was facing four counts of first-degree murder, two counts of sexual assault and one count of sexual assault on a child. All of the charges were dropped with the guilty plea. MORE: 16-year-old pleads guilty to murder of 10-year-old Kiaya Campbell in 2017 - KDVR #Colorado #Denver #KDVR #Murder Related Stories Officials search for answers after child's body found Teen boy arrested in death of 10-year-old Teen accused of killing 10-year-old to be charged as adult D.A. wants 15-year-old suspect in girl's murder tried as adult Waiting for your permission to load facebook comments.