DC Superior Court Judge Neal Kravitz ordered a preliminary mental competency screening on May 22 for a defendant accused of a fatal beating. Lavaughn Barnes, 35, is charged with first-degree premeditated murder while armed for his alleged involvement in the beating and dismembering of Abdulio Arias-Lopez on Nov. 4, 2022 on the 1300 block of Kearny Street, NE. According to court records, at the last hearing on April 28, the parties scheduled the …