(KRON) -- A Napa County judge sentenced a serial rapist to serve the rest of his life in prison without the possibility of parole for crimes involving five victims in Napa, Sacramento, and Humboldt counties. Santiago Torres Mendez Jr., 31, of Napa, was sentenced by Judge Elia Ortiz at a hearing attended by several survivors Wednesday. Two months ago, a jury convicted Mendez of six counts of rape, two counts of kidnapping, and four counts of felony assault following a trial. The Napa County crimes that led to Mendez's arrest occurred on April 28, 2021, when Mendez drove an 18-year-old woman to a remote area. He strangled her until she lost consciousness, prosecutors said. When she regained consciousness, Mendez was forcibly raping her on the side of the road, prosecutors said. "Mendez continued to sexually assault her both outside and inside of the car until she was ableto escape and call the police. Deputies responded to the scene to help the woman and took Mendez into custody," the District Attorney's Office wrote. During the investigation, detectives discovered that Mendez had sexually assaulted four more additional victims in Northern California, which resulted in additional charges. Napa County Deputy District Attorneys Kristen Orlando and Michelle Roberts prosecuted thecase. "This sentence ensures that Santiago Torres Mendez Jr. will never again harm another person," Orlando said. "His crimes were calculated, violent, and left a lasting impact on the lives of his victims." "The defendant’s actions were heinous, premeditated, and demonstrated a complete disregardfor human dignity," Roberts added.