More at the link: http://www.cnn.com/2008/WORLD/africa...mat/index.html

KHARTOUM, Sudan (CNN) -- An American diplomat working toward restoring peace in war-torn Sudan was shot and killed along with his driver early Tuesday as he headed home from a New Year's party in the Sudanese capital, his family said.

U.S. officials are working with Sudanese authorities to determine whether it was a targeted attack or an isolated incident.
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If someone happens to be inclined to research official DoS postings regarding this, please do post the results here.