DC Superior Court Judge Neal Kravitz ordered a mental competency examination for a homicide defendant at the request of his attorney on May 1. Rico Barnes, 36, is charged with first-degree murder while armed for his alleged involvement in the death of 40-year-old Syed Hussain on Feb. 11 on the 1400 block of Rhode Island Avenue, NW. Hussain died from blunt force trauma and ligature strangulation, meaning tying something around the victim’s neck.…