Harry Joses
According to The Islander, which reported on May 28, 1896, Harry Joses was held at San Quentin prison when another prisoner, Frank Jefferess, stabbed him with a knife during a quarrel. The paper said Joses died shortly afterward from the wound. The account gives the cause of death as a stab wound inflicted by a fellow prisoner.
Cause of death, as reported: Killed by another person in custody. A fellow prisoner, Frank Jefferess, stabbed him with a knife during a quarrel at San Quentin, and he died shortly afterward from the wound.
Reported by: San Quentin State Prison (the agency that held him). The only account of how this person died comes from the agency that held him.