Overview
- Joshua Anthony Martinez, 28, made his first appearance in San Joaquin County court on Monday and is being held without bail.
- Prosecutors say a grand jury indicted Martinez on four felonies that include murder, unlawful intercourse with a minor, oral copulation with a minor, and sexual penetration with a foreign object on a minor.
- Martinez was an early suspect who was previously arrested and released for lack of evidence, then fled to Mexico and was later extradited to the United States.
- Marquina, 16, disappeared on Oct. 9, 2019; her phone last pinged in San Joaquin County and her car was found abandoned in Escalon, though her body has not been located.
- Officials said new technology and information developed over the past year helped advance the case, and they asked the public for tips to help find Marquina’s remains.