(Photo by Lisa TerryFor more than four decades, one name has divided America, inspired activists and kept Philadelphia at the center of one of the nation’s most polarizing criminal cases: Mumia Abu-Jamal. While Abu-Jamal often covered these conflicts as a journalist, he was also involved in Black power organizations, including the Black Panther Party. A Signed Confession368970 07: Attorney Johnnie Cochran shows his support at a rally for Mumia Abu-Jamal in Madison Square Garden May 7, 2000 in New York City. Several thousand rallied to call for a retrial of internationally known death row inmate Mumia Abu-Jamal, convicted of the fatal 1981 shooting of a Philadelphia police officer. The judge has reinstated appeal rights to Mumia Abu-Jamal convicted of killing a city police officer more than 30 years ago.