A self-appointed neighborhood watchman who pursued and then shot dead an unarmed 17-year-old boy outside his stepmother's home last month in Sanford, Fla., reportedly wanted to be a police officer and had called 9-1-1 50 times in the last year. Trayvon Martin, a black high-school junior, was making his way home with a bag of Skittles and a can of iced tea on Feb. 26 when George Zimmerman spotted him, called a non-emergency dispatch number to report Martin looked intoxicated, followed him, and then minutes later after an altercation, shot him. Zimmerman, 28, who is white, claimed self defense. He was never arrested and has been charged with no crime, sparking national outrage. ABC News has learned police seemed to accept Zimmerman's account at face value that night and that he was not tested for drugs or alcohol on the night of the shooting, even though it is standard procedure in most homicide investigations. The night of Feb. 26, Zimmerman made a non-emergency call to polic! e before fatally shooting Martin, in which he told a dispatcher, "This guy looks like he's up to no good, on drugs or something." But law enforcement expert Rod Wheeler who listened to the tapes tells ABC News that Zimmerman, not Martin, sounded intoxicated in the police recordings of the 911 calls. "When I listened to the 911 tape the first thing that came to my mind is this guy sounds intoxicated. Notice how he's slurring his words. We as trained law enforcement officers, we know how to listen for
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