Timeline of Shootings

Details from police on shootings:

-- 5:20 p.m. Wednesday: Windows shot out at craft store in Aspen Hill area. No one hurt.

-- 6:04 p.m. Wednesday: James D. Martin, 55, of Silver Spring killed in grocery store parking lot in Wheaton.

-- 7:41 a.m. Thursday: James L. "Sonny" Buchanan, 39, of Arlington, Va., killed while cutting grass at auto dealership in White Flint area.

-- 8:12 a.m. Thursday: Taxi driver Prenkumar Walekar, 54, of Olney killed as he pumped gas at station in Aspen Hill area.

-- 8:37 a.m. Thursday: Sarah Ramos, 34, of Silver Spring killed outside post office in Silver Spring.

-- 9:58 a.m. Thursday: Lori Ann Lewis-Rivera, 25, of Silver Spring slain as she vacuumed her van at a gas station in Kensington.

-- 9:15 p.m. Thursday: Pascal Charlot, 72, fatally shot as he stood on a corner in northwest Washington near the Montgomery County line nearly 12 hours after the fifth Maryland shooting.

-- 2:30 p.m. Friday: 43-year-old Spotsylvania woman was shot in the back in a parking lot at a craft store in Fredericksburg, Va., about 55 miles south of Rockville.

-- 8:09 a.m. Monday: 13-year-old boy shot and critically wounded in front of middle school in Bowie, Md.