A prison company in TX is accused of fabricating evidence etc. who's monitoring the private prisons?

NEW BRAUNFELS, Texas (CN) - A man claims a corrupt private prison company, The GEO Group, bribed the government to get contracts and then abused inmates, including his father, who died at the Bill Clayton Detention Center in Littlefield, Texas, from "grossly inhumane treatment, abuse, neglect, illegal and malicious conditions of confinement."
Daniel McCullough sued Texas-based GEO Group and its top executives, all of Florida, and the warden of the jail where his father, Randall, died on Aug. 18, 2008.
In his complaint in Comal County Court, Daniel McCullough says his father "was found dead after supposedly being monitored by GEO and its personnel."
The complaint states: "McCullough's death was caused by specific breaches of duty by the Defendants ... who engaged in grossly inhumane treatment, abuse, neglect, illegal conditions of confinement, and subsequent coverup of wrongdoings." McCullough claims that "GEO and its personnel were found to have fabricated evidence, including practicing 'pencil whipping,' a policy and practice of GEO to destroy and fabricate log books and other relevant evidence."

Link: http://www.courthousenews.com/2010/06/17/GeoGroup.pdf