This is a very sad story.
Part of me wonders, though, if the impetus of this is the Dulcinea Effect in play, though. We don't really know the circumstances of what happened, but this man jumped in to save a random woman from an argument that turned "physical." I wonder if he didn't act too rashly. After all, it didn't seem like the woman he was saving had much respect for him or any desire to do the right thing herself, since she apparently didn't seek any medical aid for him and instead just heartlessly left him to die. Makes me think she was a bit shady in the first place, and the poor man just jumped in because of some mis-aimed need to rescue the damsel in distress.