Politico reports that Jack Conway has released his own statement, playing up the gender angle:

I was shocked to see video footage of a Rand Paul supporter stomping the head of a woman outside the debate last night. We can disagree on issues, and I don’t know what preceded the incident, but physical violence by a man against a woman must never be tolerated. It is my hope that steps have been taken to ensure this kind of thuggish behavior never happens again in this campaign.