So what really happened with Eric Massa?

Other than generally giving Rahm indigestion, this looks to be what will take him down.

The incident that Massa believes sparked the investigation happened at a wedding reception for one of his staff members. When being razzed about possibly banging one of the bridesmaids he had just danced with, Massa “tousled the hair” of one of his male staffers and said “What I really ought to be doing is f***ing you.”

ADDED- Josh has a little more here.