DC Superior Court Judge Neal Kravitz transferred a homicide defendant to a psychiatric hospital on May 28 for additional observations about his mental competency. Lavaughn Barnes, 35, is charged with first-degree premeditated murder while armed for his alleged involvement in the fatal beating and dismembering of Abdulio Arias-Lopez on Nov. 4, 2022 on the 1300 block of Kearny Street, NE. At the last hearing on May 22, at the request of the defens…