NewpartnerSamCaseyjoinsagrievingRonnietofindoutwhoshotMattdead.SamsuspectsanaccompliceoftherecentlyconvictedMarkEllisbutthetrailultimatelyleadstoJamaalClarkson,ayoungsterwhosebrotherKieranwasmurderedin2003,thoughthepoliceclosedthecaseasasuicide.JamaalbelievestheywerenotinterestedasKieranwasblackandtellsRonnieheknows..bb