A deputy sheriff suffered numerous injuries but is expected to make a full recovery after three female inmates at West Valley Detention Center attacked her on Wednesday, Nov. 13.

According to a sheriff’s department press release, at approximately 6:12 p.m., the deputy at the West Valley Detention Center supervising inmates inside a housing unit when she came across two inmates on the ground in one of the housing segments.

One of the inmates, Kyanna Patterson, 24, appeared to be having a seizure and the others, Rose Villalobos, 32, appeared to be assisting her. As the deputy approached them, Villalobos stood up and threw a cup of vomit onto the deputy’s face. Villalobos continued to assault the deputy and slashed her face with a razor. Villalobos also grabbed the deputy’s radio and struck her with it, numerous times to the head. Patterson threw a cup at the deputy, striking her in the chest.

Additional deputies responded to the housing segment and detained the inmates.

The deputy was transported to a local hospital for treatment of her injuries. She has since been released and is expected to make a full recovery.

During the investigation, it was determined inmate Amber Tena, 34, also participated in the coordinated assault by alerting the others when to attack as the deputy approached.

Upon completion of the investigation, the report will be submitted to the District Attorney’s Office for review and consideration of additional charges.

Rose Villalobos has been in custody since April of 2019 for assault.

Kyanna Patterson has been in custody since August of 2018 for attempted murder, hit and run with injury and evading a peace office with disregard to public safety.

Amber Tena was most recently charged with a crime in August of 2019 for prisoner manufacturing a weapon.

“It is because of incidents like this, our department appreciates the support of legislators such as Assemblyman Freddie Rodriguez,” the sheriff’s department stated in its press release. “Assemblyman Rodriguez introduced legislation specially to address the threat of these violent attacks. Additional measures are needed to help keep our staff safe and to hold suspects accountable.”

Rodriguez represents district 52 (Pomona, Ontario and Chino) and is sponsoring Assembly Bill 294 aimed at ensuring correctional officers and staff are informed of their rights after a “gassing” attack in which an inmate throws bodily fluid. The bill will also provide adequate training and other provisions.

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