Probe of Baltimore violence grows wider

The abduction of two Catonsville brothers last year - which police believe triggered a wave of retaliatory killings and other violence, including the shootings of 12 people at a cookout Sunday - was orchestrated by members of a heroin organization who believed their supplier was cheating them, authorities allege in court documents reviewed by The Baltimore Sun.

By Justin Fenton, Tricia Bishop and Melissa Harris

July 30, 2009