Here is where the Black Panters and other Blabk liberation groups started:

"...California is confronting the demons of its prison system — a vast labyrinth of 98 facilities, 308,400 inmates and 54,000 employees — and its reform-minded Governator is issuing tautologies along the lines of 'The purpose of corrections should be to correct.' In 2004, a declaration of emergency was made to deal with the overcrowding that had been forcing jails to triple-bunk inmates in two-person cells. (It was the fifth state of emergency in eight years.) Five inmates were killed in seven months at the Men's Central Jail in downtown Los Angeles. Racial riots flared, including violent uprisings at Folsom State Prison in June 2004 and the privately run Eagle Mountain Community Correctional Facility on October 25, 2003 (where white, black and Latino inmates had 90 minutes to hack away at one another with knives and meat cleavers stolen from the kitchen while weaponless guards waited for armed backup from nearby state-run prisons). Just a few weeks ago, on January 10, 43-year-old guard Manuel A. Gonzalez Jr. was stabbed to death by gang-affiliated inmates at Chino..."