Aurora police Detective Gretchen Fronapfel is also investigating the case.
Fronapfel joined Aurora police in 1994 and has spent the past several years investigating major crimes.
In 2007, the Colorado Chiefs of Police named Fronapfel the Colorado Police Officer of the Year for her handling of the Javad Marshall-Fields and Vivian Wolfe slayings.
In that case, police say the young couple were gunned down because Marshall-Fields had agreed to testify in the July 4, 2004 slaying of his friend at Lowry Park.
The accused gunman, Sir Mario Owens, and the accused mastermind, Robert Ray, were both convicted of first-degree murder and sentenced to death.