By Andrew Gould Jim Redmond, who helped his injured son cross the finish line at the 1992 Olympics, died at 81 years old. British sprinter Derek Redmond tore his hamstring during the 400 meters semifinal at Barcelona. He resisted medical attention and attempted to limp his way to the end when his father rushed down from the stands. Jim waved off stadium security and held Derek as they crossed the line. He reportedly told his son, “We started this together and we’re going to finish this together.” “Our thoughts are with Derek Redmond and his family following the death of his father, Jim,” The O…