what would you have done?

So today I'm walking the two blocks from my house to my barber, no biggie I see a couple arguing about something up ahead. As I get closer its an Indian couple and the guy is yelling at her (in Indian i figure) and well shes just cowering at this. I dont think too much of this because its not my business, and well its just yelling. I'm about 20 feet away and I see the guy hit her across the face - only description I have for this is a "b*tch slap" I did a double take.


What would you have done in my shoes?


I'm now 5 feet away as I've doubled my pace to make up the distance. He strikes her once more and she falls down into a pile of snow.

I grabbed him by the arm and yanked him back (maybe he was all of 5'8-5'10) and ask him wtf he thinks hes doing? He just screamed something at me in Indian and then swung at me. He didn't connect with much and in short order he was pinned to the ground (sorry details now escape me, there was blood in the snow, but mabye it was hers and not his... i dunno). I pinned him down and the girl takes off running down the street. So for a moment I have him pinned down... I have no idea what to do now.. if the female stayed around I would have called the police but shes gone and I can't press charges... So i got up and said "stay down" and walked off to my to cut my hair.

Am I a bad person? I feel like shit right now because hes probably beating her as I try and type this up.