Once a jihadist, always a jihadist.

An ex-Guantanamo detainee named Jamal Kiyemba has been arrested as a suspect in the assassination of Joan Kagezi, a senior counterterrorism prosecutor in Uganda. At the time of her death late last month, Kagezi was playing a lead role in the trial of 12 men who are accused of taking part in bombings in the capital of Kampala on July 11, 2010. More than 70 people were killed in the dual suicide attacks, which were carried out by a Shabaab unit named after a deceased al Qaeda operative.