Dr Karch told BBC News Online at the time that he studied similar modern cases.

BBC: RELATED BBC SITES

Karch retired from McKinsey in 2000, and now serves as a member of the company's advisory council.

FORBES: Magazine Article

Karch Kiraly, the assistant coach of the U.S. women's volleyball team and a three-time Olympic gold medalist in the sport, says that physical contact is a sign of closeness.

WSJ: Group Hug: Which Olympic Sport Wins Gold for Touchiest?