Police search for suspect in deadly DeKalb County shooting

<p>Police have issued a countywide lookout for a suspect in a fatal shooting at a home in south DeKalb County.</p><p>Police believe a man in his 30s -- identified as Julian Walker -- shot and killed the stepfather of an 18-year-old woman he had been dating. The young woman had met the man while working at a pizza restaurant but apparently tried to break up with him yesterday.</p><p>Police also are trying to determine whether the shooting may be tied to a later shooting in DeKalb County. (WAGT-TV, Stacey Elgin)</p>