Trial Opens For Man Accused Of Murdering A Federal Witness

Leaked documents naming witness were posted in neighborhood

It was a Sunday in September 2009, and Kareem Kelly Guest had spent the entire day assembling a bedroom for his 6-year-old daughter in his mother's Westport home. He'd been released from jail three weeks earlier and was making up for lost time.

He left the house after dark to pick up the little girl and show her his handiwork. But he never made it. Guest was executed shortly after stepping outside, shot twice in the back and four times in the head.

Guest had been labeled a rat, and everybody knew it, prosecutors said Tuesday in Baltimore's U.S. District Court, during opening statements in the federal trial of Antonio "Mack" Hall.

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