Police Corporal Stephen Rubio testified in the case against two former Fullerton, CA, police officers in the 2011 death of Kelly Thomas, a mentally ill homeless man. Officers Manuel Ramos and Jay Cicinelli are accused of beating Thomas with a Taser gun, resulting in his death. The use of force expert witness testified that the officers were working within the police department’s policies and the use of force was consistent with police training. Rubio is a use of force trainer for the Fullerton Police Department.