LANCASTER, Texas — Investigators said Monday they believe the 27-year-old son of Dallas Police Chief David Brown shot and killed a man at a suburban apartment complex and then opened fire on responding officers, killing one, before being shot to death. Dallas County Sheriff Lupe Valdez said investigators were still sorting out details, but it appeared David Brown Jr. shot Jeremy McMillan, 23, on Sunday evening and opened fire on Officer Craig Shaw and others when they responded. Shaw, 37, was killed, the first officer to die in the line of duty in Lancaster, a city of 35,000 about 15 miles south of Dallas. Brown …Read more […..]