Jesus Ayala, 18, and Jzamir Keys, 16, are suspected of intentionally driving into Andreas Probst, 64, while he was riding his bicycle in the northwest of Las Vegas at around 6am on August 14 and videoing the attack

Two teenage boys have been charged with plowing a stolen car into a retired police chief as he cycled along an empty highway in Las Vegas and filming the fatal hit-and-run in a sick video.