080917 Gerken Trial (MA)
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Matthew Apgar - mapgar@shawmedia.com
Detective Mark Nachman gives testimony to his October 2015 police chase involving Christopher Gerken on Wednesday, Aug. 9, 2017 at the DeKalb County Courthouse in Sycamore. Gerken is facing murder charges stemming from a drug deal gone bad, with the prosecution alleging that Gerken was angry with Clark for shorting Gerken about $50 worth of cocaine in a drug transaction.