Search Results: scaring a boy away

Here's a moral dilemma for you folks.

You have two best friends, a girl and a boy. You knew them both from the same year of elementary school, through the end of college. You spend countless days and nights together and genuinely enjoy each other's company, and even help each other out when you need it.

Later on, your female friend becomes a surgeon and you male friend becomes a biology teacher.

A spree of brutal murders start taking place in the area, women being tortured to death. Your male friend becomes a suspect when his wife produces a journal containing a list of the victims and future ones, including your female friend. And while the police go to arrest him, they get into a shootout, him ending up gravely injured, and sent to. a hospital for surgery.

Your female friend is the doctor assigned to perform surgery on him. The police tell her what is going on and tell the other staff that they will be nearby just in case.
Your female friend runs up to you and tells you that she's scared for her life, that she may let him die on the table.
So now here is where you come in.

A: you allow her to let him die, or kill him during surgery, thus preventing more horrific murders but scarring your friend for life with possible legal repercussions.

Or

B: she performs the surgery, but risks him escaping or getting away with it, putting her and many others at risk of a horrific death.

What do you choose?