Thanks for the comment, @Talo Segura.
As to who the person being resuscitated was, I don't think it really matters. It could have been the victim of an attempted robbery. It could have been a victim of domestic violence. It could even have been someone shot by the police as he was committing some crime of his own. None of that mattered to the doctor trying to resuscitate him. All he saw was a fellow human being that needed his intervention to try to stop him from dying. Something to do with the Hippocratic Oath he had taken, maybe?