Police: Zimmerman could have warned teen SANFORD, Fla., June 26 (UPI) -- Police said George Zimmerman, charged with murdering a Florida teen, passed up two chances to tell the victim he was a neighborhood watch volunteer. Had Zimmerman alerted Trayvon Martin to this fact, Sanford police said the confrontation that resulted in Martin's death might have been defused, newly released court documents said. The documents indicated police did not believe everything Zimmerman told them about what happened the February night he shot Martin, but didn't have any evidence to disprove his statements, the Orlando (Fla.) Sentinel reported Tuesday. Zimmerman told police he shot Martin in self-defense when the teen allegedly attacked him. "Investigative findings show the physical injuries displayed by George Michael Zimmerman were marginally consistent with a life-threatening episode as described by him," wrote police Investigator Chris Serino. The documents and a video clip released Tuesday by prosecutor Angela Corey include a statement by the defendant's family practice doctor detailing a list of the injuries Zimmerman sustained in the incident, the Sentinel reported. The doctor, whose name was not reported, said Zimmerman had an open scalp wound, a closed nasal fracture and "assault by other specified means."