James McCord is important two ways:
1) The night of the June 17, 1972, burglary, he was assigned to tape the doors so that they closed but didn’t lock. And he did so the stupid way, horizontally, so that when the door was closed, the tape was patently obvious, instead of vertically so that the tape would be hidden (although maybe not as securely holding back the locking mechanism).
2) And some weeks following the Jan. ‘73 trial and conviction, he write a letter to Judge Sirica saying that he and his fellow burglars had been pressured to commit perjury during the trial.