"He really had turned his life around and then something changed. He was just an inspiration, a gifted guy, really optimistic and he just got caught flat-footed. It's a horrible tragedy." Robert Downey, JR. is still upset about the death of pal ADAM 'DJ AM' GOLDSTEIN, who has a cameo in IRON MAN 2. The DJ died from an accidental drug overdose last year (09).