On the last day of his life, the talented but troubled former NFL defensive end Aldon Smith went to a charity for homeless people, and donated food. That was confirmed by both the charity's founder and Smith's friend Amir Shirazi, who was with him on Saturday to make the delivery, and shortly after that found him unresponsive. Shirazi says that Smith, whose NFL career was repeatedly interrupted by arrests, suspensions and other problems off the field, had been trying to turn his life around.