Alleged robber, killer pleads guilty

November 5, 2009 (CHICAGO) As part of a plea deal, Alton Marshall agrees to testify against another suspect in the deadly robbery in May of 2007. Marshall will receive a 20 year sentence.

The teller killed was Tramaine Gibson. His father argued in court Thursday against the proposed 20-year sentence.

The judge says she will read more materials in the case before deciding whether to accept the plea deal.

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