Port-Au-Prince (Haiti) Feb 27 (AP) One of Haiti’s most powerful gang leaders, Arnel Joseph, was killed on Friday, a day after he and dozens of other inmates in a prison breakout that left at least eight people dead, including the prison director, authorities said. Police spokesman Gary Desrosiers told The Associated Press that Joseph was riding on a motorcycle through the Artibonite area in the town of L’Estre when he was spotted by a police checkpoint. He said Joseph pulled out a gun and exchanged gunfire with police. Desrosiers said the unidentified driver of the motorcycle was injured but fled..