Serious Violent Crime

A San Joaquin County criminal grand jury returned a true bill of indictment against Joshua Anthony Martinez on murder and multiple sex‑crime charges in the 2019 disappearance of 16‑year‑old Victoria Marquina; Martinez is being held without bail in the San Joaquin County Jail. Prosecutors say he was in an unlawful dating relationship with Marquina when she vanished, that he admitted dropping her off in Sutter Creek, and that he fled to Mexico shortly after (he was later extradited back to the U.S.); Amador County DA Ron Freitas authorized prosecution in San Joaquin County, and both Freitas and Marquina’s mother, Blance Valencia, have urged anyone with information to come forward.