Mario Nathan Castanon was 22 and lived in Fresno, California. He died on March 17, 2014, and law enforcement later determined his death resulted from a violent crime after an altercation.

Authorities investigated the circumstances and arrested several people who were charged in connection with his killing; the case moved through multiple court hearings where evidence and testimony were presented.

Beyond those developments, the material does not provide further specifics about where the altercation occurred, the sequence of events leading to his death, or the outcomes of the trials. Does anyone have information about Mario’s last known movements or witnessed the incident?