Deputy killed in Yucca Valley shooting mourned, honored with procession An overnight procession honored the sacrifice made by Sgt. Dominic Vaca, a San Bernardino County Sheriff's Department employee who served for 17 years. He was a sergeant at the Morongo Basin Station. Vaca was killed in a shooting in Yucca Valley on Memorial Day. "We appreciate the outpouring of support and prayers for Sergeant Vaca, his family, and our department," a tweet from the Sheriff's Department read. A procession for a true hero— We appreciate the outpouring of support and prayers for Sergeant Vaca, his family, and our department. pic.twitter.com/3IDDbam2Dp— San Bernardino County Sheriff (@sbcountysheriff) June 1, 2021