CHESAPEAKE, Va. (AP) — Authorities investigating the fatal shootings of six people at a Walmart said that the shooter bought the gun just hours before and left a note on his phone listing grievances against coworkers. Police in Chesapeake, Virginia, issued a news release Friday that says they conducted a forensic analysis of Walmart supervisor Andre Bing’s phone. Police say he was the shooter and was found dead at the scene of the shooting late Tuesday of an apparently self-inflicted gunshot wound. In the note released by police, he said coworkers harassed him and mocked him. Police said in their release that he used a 9mm handgun legally purchased on Tuesday morning, hours before the shooting. The release said he had no criminal history.