ATLANTA (AP) — A third person has died following a series of shootings in the Atlanta area. Police in Brookhaven say Tony Mathews, a 49-year-old homeless man, died Sunday from injuries after he was shot in the early morning hours of April 13 outside a grocery store. Authorities say they’re seeking an additional murder charge against Olaolukitan Adon Abel, a 26-year-old U.S. Navy veteran who is already accused of killing two others in the same series of attacks. Authorities haven’t offered a