Mackey had a very important TD catch in the Colts 16-13 win over the Cowboys in one of the early Superbowls-and was president of the NFLPA for a no. of years-He was inducted into the HOF in 1992 with many believing his work for the player's association was a reason for a delay in his selection to the Hall-He ran a 4.6 forty and averaged 30 yards per when he was used as a kickoff returner one year-He sadly suffered from dementia in his later years and was in an assisted living facility when he died. He was a pleasure to watch-