59-year-old Ahmed Dirir walked into his business, AK Home Health Care LLC, on Thursday afternoon, got into a brief argument, and then shot his three employees. Killed were 44-year-old Khadra Muse of Olivette, Mo., 29-year-old Seaeed Abdulla of St. Louis, and 54-year-old Bernice Solomon-Redd of East St. Louis, Ill. Dirir, Muse and Abdulla were all from Somalia