A Montgomery County jury on Wednesday evening found Brittany Norwood guilty of first-degree murder in the horrific slaying of her co-worker at the Lululemon Athletica store in Bethesda. The six-day trial, which detailed a vicious killing and the dramatic twists and turns of an investigation into an elaborate cover story and a morbidly staged crime scene, ended with the jury presenting its verdict close to 7 p.m. after a little more than an hour of deliberation. As the verdict was read Wednesday night, an audible “yes” could be heard from the family of the victim, Jayna Murray. “I want no...