escaping from jails and mental hospitals," and "a hole in a fence" surrounding CIM. Three days after Cooper's escape, four people were found dead in nearby Chino Hills, and Cooper was later convicted of murdering them. However, there have been doubts raised as to Cooper's guilt over the years. In 1987, officials of the city of Chino opposed a plan to build a ward at CIM for inmates with HIV/AIDS because they "believe[d] it would threaten the community." After "Corrections Department officials announced they wouldn't increase the AIDS inmate population to more than 200 men," opposition decreased. The ward was constructed and received its first patients in May 1988, making it the second such AIDS ward in California (following one opened in 1984 at the California Medical Facility). Shayne Allyn Ziska was a correctional officer at CIM "from January 1984 through October 2000." In 2004 he was arrested for helping the Nazi Lowriders (a white supremacist organization) "distribute drugs and assault inmates" inside CIM. In 2006, Ziska was convicted "on charges of conspiracy, civil-rights violations and violent crime in aid of racketeering" and sentenced to "17 years in federal prison." Ziska, Federal Bureau of Prisons #04299-748, is now at Federal Correctional Institution, Englewood, Colorado. Correctional Officer Manuel A. Gonzalez Jr. was stabbed to death in CIM in 2005. Factors that may have contributed to the killing were prison overcrowding, understaffing, a failure to segregate the inmate in question due to a history of violent behavior, the inmate's lengthy stay at CIM, the inmate's access to a weapon, and the officer's lack of a protective vest. In the aftermath of the Gonzalez murder, CIM instituted reforms. The California Department of Corrections and Rehabilitation in July 2007 agreed to pay $1.2 million to settle a lawsuit by Gonzalez's family. In 2005 and 2007, the state of California proposed building hundreds of new units for mentally ill inmates at CIM and at the nearby California Institution for Women; local officials opposed such plans. A "general acute-care hospital at CIM" had received a license to operate in 1984, but in March 2006 the hospital operating room was closed and in July 2007 the plan was "to relinquish the license" because the facility was not functioning as a hospital. On August 8, 2009, a prison riot broke out at CIM during which over 250 inmates were injured, and which ultimately took more than twelve hours