US urges Sudan to re-arrest diplomat's killer
The release was not a component of a deal between the two countries, according to the State Department.
Boakyewaa Lawrencia 
The shooting of an American diplomat 15 years ago has resulted to a Sudanese man's conviction, and the United States has demanded his immediate re-arrest.
In connection with the contentious release of the prisoner Abdel Raouf Abu Zaid, the US State Department has also summoned Sudan's ambassador to Washington.
As a result of the 2008 New Year's Day murders of Sudanese driver Abdel Rahman Abbas and diplomat John Granville, Zaid was sentenced to death.
The US has debunked Sudan's assertions that Mr. Granville's family had pardoned the murderer.
The release was not a component of a deal between the two countries, according to the State Department.
The USS Cole attack in Yemen in 2000, the killing of Mr. Granville, and the 1998 bombings of the American embassies in Kenya and Tanzania all resulted in an agreement by Sudan's transitional government to pay approximately $335 million (£274 million) in compensation in 2020.
Both Mr. Granville and his colleague from Sudan, Mr. Abbas, worked in Sudan for the US Agency for International Development. As they left a New Year's party in 2008, they were shot and killed by gunmen.
