Two males were arguing on the platform over the elevator. The suspect struck the victim. The victim defended himself and ran downstairs to contact the station agent. The suspect fled from the station. Officers searched the surrounding area and located the suspect in the shopping center, across from the station. An in-field show-up was conducted and the victim positively identified the suspect. A sergeant approved the arrest. The suspect was issued a prohibition order and was booked at the Martinez Detention Facility.