Moments ago, the LCSO issued shocking and tragic new information about the case.
Flores has been found and is under arrest and a thus-far-unidentified deceased young woman was found in his truck.
(...)
Then, at around 8 a.m., investigators learned that Tanner's truck had been spotted in unincorporated Mesa County, not far from Collbran; that's an area associated with the Grand Mesa.
At the request of Larimer County officials, Mesa County Sheriff's Office deputies and other personnel located the truck, recovered the body of "a young adult female" and took Tanner into custody, where he's being held on thus-far-unspecified charges.
The Mesa County coroner's office will release the identity of the victim, as well as the cause of death, "at a later time," the LCSO notes.