The high court will decide whether he deserves a new hearing to determine whether his execution should go forward . Mumia Abu-Jamal 's case has become an international cause . He has two appeals before the U.S. Supreme Court . The first is his conviction for killing a police officer in Philadelphia, and the second is to be tried on charges of murdering another man who was found dead with a gunshot wound to the head inside a car Abu-Jamal convicted in 1981 killing of Philadelphia police officer .
Mumia Abu-Jamal 's case has become an international cause . He has two appeals before the U.S. Supreme Court . The first is his conviction for killing a police officer in Philadelphia, and the second is to be tried on charges of murdering another man who was found dead with a gunshot wound to the head inside a car Abu-Jamal convicted in 1981 killing of Philadelphia police officer .