Forbes is the last person known to have seen Kenia Monge, 19, of Aurora, who vanishes April 1 after apparently receiving a ride in Forbes' white van. The next day, Forbes is seen scrubbing a large cooler at his workplace, Deby's Bakery and Cafe, 2369 S. Trenton Way. A surveillance tape shows Forbes wheeling a cooler bound with duct tape to the back door. He is then recorded turning off the video camera. In May, Forbes suddenly moves to Austin, Texas, taking an ex-girlfriend's SUV, where a fugitive task force of U.S. Marshals and Austin police arrests him on a felony aggravated car theft warrant out of Wheat Ridge. He is extradited back to Colorado, but the charge is later dropped. In July, an assault and arson force Lydia Tillman, 30, of Fort Collins, to jump from her second-story window at dawn on July 5. Police contact Forbes, who is arrested for lying to police about his identity. While in the Larimer County Jail, he is charged with attempted murder, sexual assault, arson and motor-vehicle theft in connection with the attack on Tillman. Forbes is serving a life sentence with no chance of parole for killing Aurora teen Kenia Monge and savagely attacking Lydia Tillman from Fort Collins, who he physically and sexually assaulted, setting her apartment on fire to cover up the crime. Kerry Humphrey, 24, admitted to lying about Forbes' whereabouts the night Kenia went missing and cut a deal with prosecutors. She was sentenced Wednesday for attempt to influence a public servant, false reporting to authorities, and perjury in the second degree. The judge sentenced her to 60 days in county jail and four years of supervised probation. She was also ordered to complete 2,000 hours of community service and seek mental-health counseling. "They should've thrown the book at her. I really do believe that," Tony Lee, said. "I have to accept the judgment of the court. Even though I'm unhappy with the sentence, I believe in the system." Humphrey spoke only to 9NEWS Crime and

KUSA