"According to his former wife, Sylvia, Brown asked to return to work two days prior to the shooting, but his psychiatrist, who later stated that Brown showed no aggressiveness at that time, declined his request.On August 19, the day before the shooting, Brown had a heated argument with Jorge Castalleda, an employee at "Bob Moore's Welding & Machine Service Inc.", about a $20 bill for repairing a lawnmower engine he wanted to use to power his bicycle, saying the work was poorly done.