Three officers and a former medical assistant were not responsible for the rape of an inmate at a Calif. state prison once considered the nation's deadliest, a jury determined Tuesday.

The jury deliberated for about five hours in the four-week long federal civil rights trial of Eddie Webb Dillard. Dillard claims the officers and the medical technician at California State Prison, Corcoran set up and then covered up his rapes by convicted murderer Wayne Robertson, a man so notorious for his sexual assaults on fellow inmates that he is known as the "Booty Bandit."

The attacks are alleged to have occurred over two days in March 1993. Dillard claims the guards arranged the assault to punish him for kicking a female officer at another prison. Dillard is serving time for assault with a deadly weapon.

The jury found that Robert Decker, Anthony Sylva, Joe Sanchez and Kathy Horton-Plant were not responsible for the attacks.

Decker, Silva and Sanchez were acquitted in 1999 of criminal charges in the same case.

Dillard filed the federal civil rights lawsuit in 1994 against Decker, Sylva, Sanchez and Horton-Plant, a prison medical assistant at that time who has since retired from the California Department of Corrections.

Decker, Sylva and Sanchez remain employed by the CDC.