May 28, 2010 6:36 pm Technical Tug of War Over Evidence Expert in Cover-Up Case The defense in the Robert Wone slaying cover-up case argues an evidence expert’s experiments and opinions are flawed. Courtroom sketches by Bill Hennessy. Local 2:15 Veteran of wars in Iraq, Afghanistan killed in Laurel hit-and-run 3:28 Social media and teens' mental health: A psychiatrist weighs in 1:41 DC-area police ramp up traffic enforcement in pedestrian safety campaign 3:05 ‘We need real liberation': George Washington University pro-Palestinian protest enters fifth day 2:17 GW asks to students to move pro-Palestinian demonstration