6:25 a.m. Riley Powell, a 3-year-old boy, was taken unresponsive to University of Maryland Pediatrics. His mother, Dominique, at first told police that they had been attacked by strangers while walking on Janice Avenue, but later recanted and said her boyfriend, Charles Shelton, age 22, had beaten them both. Police arrested Shelton. On Sept. 4, Powell died, and Shelton was charged with homicide. Shelton turned 23 in jail this week.