Orlando Watch Shooting Probe Reveals Questionable Police Conduct

ABC News has uncovered questionable police conduct in the investigation of the fatal shooting of an unarmed black teenager by a white neighborhood watch captain in Florida, including the alleged "correction" of at least one eyewitness' account. Sanford Police Chief Billy Lee said there is no evidence to dispute self-appointed neighborhood watch captain George Zimmerman's assertion that he shot 17-year-old Trayvon Martin out of self-defense. "Until we can establish probable cause to dispute...Full Story