Two men charged in the West Englewood slaying of a Chicago police officer in 2009 are scheduled to go on trial today.
Kevin Walker and Christopher Harris are accused of killing Officer Alejandro "Alex" Valadez as he responded to a report of shots fired in the 6000 block of South Hermitage Avenue, according to the Cook County State's Attorney's Office.
A third defendent in the case, Shawn Gaston, is serving a 125-year prison sentence.
State's Attorney Anita Alvarez will serve as lead prosecutor during the trial, which is scheduled to begin at 11 a.m.
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