The federation also will begin disciplinary procedures against Chun for failing to report the tampering and against Cho, who admitted this week that he had engaged in the tampering but insisted he did so at Chun’s orders.
US Speedskating said it had no timetable for its disciplinary procedures but would decide by Monday who will take over coaching duties for the U.S. team at the first World Cup meet of the season, which begins Oct. 19 in Calgary.
“We do not believe there is sufficient evidence at this point to say coach Jae Su directed Simon Cho to tamper with the skate,” Little said during a Friday press conference in Salt Lake City. “There were conflicting and contradictory reports by at least three if not four critical players (in the incident). There was not sufficient evidence for us to say definitively what happened.”
"Coach Chun is very pleased with the findings of the investigators," said his attorney, Russell Fericks of Salt Lake City. "He is eager to help patch up the US Speedskating team ... .but he will wait for USS to work through its processes."
Cho's attorney, John Wunderli of Salt Lake City, said he expected the investigators, who had no subpoena power or testimony under oath, would not resolve the conflicting versions of the tampering incident. But Wunderli insisted it made no sense for Cho to have done the tampering on his own initiative, since he gained no competitive advantage from it.
The sabotage kept Jean from skating effectively in the final event of the world meet and wound up costing the bronze medal Canadian team a shot at gold or silver. The U.S. already was out of medal contention when the tampering occurred.
"Simon Cho showed respect and humility in admitting his mistake, and Speed Skating Canada appreciates that he has come forward and that he apologized to Olivier last night in a phone call," said Ian Moss, chief executive officer of Speed Skating Canada, in a statement Friday.
Moss said he also had received an apology from US Speedskating executive director Mark Greenwald.
Cho called Jean Thursday night to apologize.
"I appreciated his honesty," Jean told Canadian reporters Friday. "He apologized sincerely. This kind of behavior is unacceptable in sport, and he expressed genuine remorse for it."
All the allegations may be heard again at a hearing before an American Arbitration Association arbitrator Nov. 1. Like the White & Case investigation, the arbitrator will not have subpoena power.
The U.S. speedskating team has been divided by the allegations against the coaches.
More than a dozen skaters signed off on complaints against Chun. Nine signed a letter of support for him.
“I want to emphasize (our conclusion) does not mean we are condoning the methods or tactics that were used by the U.S. speedskating coaches or questioning in any way the skaters who made those allegations and the sincerity with which they made them,” Little said.
Among the allegations of emotional abuse was one that Chun had called 2010 Olympic silver medalist Katherine Reutter a "fat cow." In an interview last week, Reutter shrugged off the incident but did not deny it happened.
Under the U.S. Olympic Committee's Sport Sport Program documentation, an example of emotional misconduct by coaches is "verbally attacking an athlete personally (e.g., calling them worthless, fat or disgusting."
White & Case became involved in the investigation as one of the law firms that have agreed to do pro bono work related to the Safe Sport Program for the USOC.
"I am not sure White & Case fully understands what abuse is," said Allison Baver, a two-time short track Olympian and one of the complainants who also is on the USOC Athletes Advisory Council.