Trayvon Martin death: Slain black youth that galvanized the nation (SLIDESHOW)
Amadou Diallo, 23, was a Guinean immigrant in who was shot and killed on February 4, 1999 by four New York City Police Department plain-clothed officers. Officers said they believed he had a gun when he reached for his wallet.
Sean Bell, 23, was killed by the NYPD in 2006. Officers said they believed Bell and friends were armed when they began shooting into their car. The officers involved were acquitted on all charges
Oscar Grant, III, 23, was pulled out of a San Francisco-area BART train by police on New Year’s Day. Several videos show Grant laying on the ground with police standing over him. One officer shot him in the back. The officer was found guilty of second degree manslaughter and sentenced to two years, minus time served
Derrion Albert, 16, was caught in a fight between two groups in 2009. He was brutally beaten by several young men. The incident led to national focus on violence in Chicago. The people tried in Albert’s death received sentences from seven to 27 years in prison
Trayvon Martin, 17, was killed in February by a 28-year-old man, George Zimmerman, who claimed to be a part of the neighborhood watch in a Florida gated community. The case is currently under investigation by federal and local authorities after a flood of media attention called for the arrest of Zimmerman