Monge went missing from a Denver nightclub on April 1. Her body was discovered in a shallow grave near Keenesburg earlier this month. Forbes was charged with her murder on Sept. 8.

Forbes admitted to giving her a ride the morning she disappeared but told 7NEWS reporter Marc Stewart in April that he had nothing to do with her disappearance.

Forbes Timeline

In May, Wheat Ridge Police issued a warrant for Forbes on suspicion of stealing a car. He was arrested on May 5 in Austin, Tex. On June 30, those charges were dropped and Forbes was released from Jefferson County jail. On July 10, Forbes was again arrested, suspected of sexually assaulting a woman and setting her apartment on fire in Fort Collins on July 5.

In July, 7NEWS requested documents from Austin Police about arresting Forbes on the stolen car charge, but were initially denied any records. A police spokeswoman told 7NEWS that Austin Police detectives did not want the information released as it was part of an ongoing investigation and directed our request to Denver Police.

Austin Documents: Forbes Wanted For Murder

The Forbes arrest report from Austin on May 5 lists the offenses for which he was arrested for or suspected of. One refers to "out of city auto theft," another reads "out of city murder."

"This says he was also arrested for an out of city murder. Was Denver Police wanting him for murder at this time?" asked 7NEWS reporter Marshall Zelinger.

"No. We were pretty clear throughout the entire investigation that Travis Forbes was not wanted, that he was not a suspect of any kind," said Denver Police Lt. Matt Murray. "Until we had probable cause, we did not arrest Travis Forbes nor did we ask somebody else to arrest him for us."

Denver police questioned Forbes shortly after he came forward admitting to giving Monge a ride the morning she was last seen.

"Clearly we were looking at Mr. Forbes and we were talking to Mr. Forbes, but again, we were pretty clear not to name him as a suspect in that case," said Murray. "We don't arrest people unless we have probable cause because we have to protect their Constitutional rights. We had no reason to believe, at that time, that he had killed her."

Murray wouldn't get into specifics about the Forbes case because it still has to go to trial. He did say Denver Police are always in contact with the district attorney's office and make sure they don't arrest a person too soon, without evidence to take to court.

Unknown Why Murder Listed On Forbes Arrest Report

Austin Police sent 7NEWS a four-page police report that was heavily redacted regarding the Forbes arrest.

There are 53 other pages that were not provided citing a law enforcement exemption.

Austin Police said the missing pages would include officer's summaries and other investigative information. 7NEWS asked Murray if Monge and/or Denver Police would be referenced in the missing pages. Murray said there should be no mention of Monge or Denver Police because that arrest was strictly for the car theft charge from Wheat Ridge.