When he was shot, Martin had been talking on his mobile phone to his girlfriend. He was wearing a hoodie. Zimmerman had thought Martin looked suspicious. He called the emergency telephone number (911) and the operator told him that he did not need to follow Martin. Zimmerman did anyway. People are not sure what happened after this. When police arrived at the location of the shooting, Zimmerman said that Martin had punched him in the nose and knocked him onto the pavement. Martin had not been carrying a weapon when he was shot. 