A 64-year-old Brockton man suffered a fatal heart attack Tuesday night during a Milton Board of Selectmen’s meeting, where he was waiting to give a presentation. Vincent Tempesta was taken to Beth Israel Deaconess Hospital-Milton, where he was pronounced dead, said Milton Deputy Police Chief John King. Tempesta was the manager of Milton Cab, where he had worked for 35 years. He had come to the meeting to deliver a proposal by the business to increase taxi fares. Denis Keohane, chairman of the selectmen, said Police Chief Richard Wells performed CPR on Tempesta.Catalina Gaitan can be reached at email@example.com. Follow her on Twitter at @catalina_gaitan.