On Tuesday evening, an altercation occurred between the security detail of San Jose Mayor Matt Mahan and a pedestrian near 55 S 1st St. downtown. The incident, captured on video, shows the pedestrian punching the security officer in the head. The altercation escalated from a verbal exchange to physical violence, with the pedestrian detained by police officers. The injured officer was taken to the hospital, and the pedestrian faces multiple charges, including felony battery on a police officer.