They had planned to stop in Spanish Fork as well.   On January 11, 2018, the Jeep they were driving was found by the Department of Public Safety, Juab County Deputies, and with the involvement of Civil Air Patrol.  
Police fear that the missing teenage couple, whose abandoned truck was discovered ten days after they went missing, may have been murdered. 
Slash marks on their tires also appeared to have been made deliberately, police said.
When police searched the home where Powell's mother Mistie Carlson lives with her boyfriend Lee Shepherd, her mother, Linda Powell, and her mother's boyfriend William 'Clubby' Larson after being alerted to them by a neighbor. The items they seized included drug paraphernalia and letters addressed to Riley's mother.