MEMPHIS, Tenn. (AP) — A U.S. Postal Service letter carrier who shot a manager and a supervisor before killing himself inside a Tennessee postal facility was not a violent person and was being bullied at work by his superiors, his mother said Thursday.

Tracey Haley told The Associated Press that her 28-year-old son, Johntra Haley, was the person who shot two postal service co-workers Tuesday at a sorting facility in Memphis.

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