Abu-Jamal has long been a lightning rod in the debate about capital punishment in America. While law-enforcement officials have despised him for killing one of their own, entertainment figures, academics and anti-death-penalty activists have rallied on his behalf.
From prison, Abu-Jamal has become a prolific writer who speaks out about his view of injustices on a range of issues.
But at his trial, Abu-Jamal came across as angry and arrogant. He insulted the jury and referred to Sabo as "a hangman." And when jurors announced the sentence in a hushed courtroom, Abu-Jamal glared at them.