Ohio State University women's hockey coach Nate Handrahan has resigned after a school investigation revealed unprofessional behavior and sexually suggestive comments made to players. OSU officials opened the investigation after an incident at an airport in North Dakota in late November. Witnesses said Handrahan was drunk and missed a team bus. Ohio State also received complaints for sexual harassment, unprofessional and intimidating conduct and retaliation. The school says he made sexually explicit comments to several players.