Aidan Zellmer is an American student who attended Horizon High School in Thornton, Colorado. On March 11, 2019, Zellmer was sentenced to life in prison with the possibility of parole. He pleaded guilty to the murder of Kiaya Campbell in 2017. 
Life & Activities
Death of Kiaya Campbell
On June 10, 2017, Zellmer was arrested in connection to the death of Kiaya Campbell. At about 11:38 p.m. local time, Thornton Police Detectives arrested him for investigation of first degree murder.    He was booked and transported to the Adams County Juvenile Detention facility.   
On June 12, 2017, Zellmer and his parents appeared for a detention hearing in juvenile court at about 1:30 p.m. local time.   His father, Demmie Joseph Olvera, was wearing a crucifix on a chain around his neck.  He waved it in front the news media and said "Jesus" before entering court.  He later read from a Bible while waiting for Aidan to appear for the detention hearing.  Aidan is currently being held in the Adams County Juvenile Detention Facility. 
He is in ineligible for bond, due to the case being of murder.  On June 14, 2017, Zellmer was formally charged with intent to kill after deliberation and first degree murder of a child under the age of 12 by someone in a position of trust.  Prosecutors will seek to prosecute him as an adult.  A hearing on June 30, 2017, will determine whether Zellmer will be released on bond and whether he will be tried in adult court.  A preliminary hearing is also scheduled on the same day.
On Friday, February 1, 2019, Zellmer pleaded guilty to killing 10-year-old Kiaya Campbell in June 2017. 
On March 11, 2019, Zellmer was sentenced to life in prison with the possibility of parole in 30 to 40 years.