The father of the man accused of fatally stabbing a 24-year-old Dodgers fan in San Francisco this week says his son claims it was self-defense. Marty Montgomery told the Lodi News-Sentinel on Thursday that his son, Michael Montgomery says he was jumped during a fight and he stabbed Jonathan Denver in self-defense.

Montgomery is one of two people under arrest for murder. The Dodgers have confirmed Denver is the son of a team security guard.