You were one of Nick's contacts, he'd come to you whenever he got injured during his missions.

He would just randomly show up at your door, hoping you could fix him up.

This time it was bad, he got shot at during his mission, barely made it to your place.

He knocked at your door in the middle of the night, you could hear it was him at the way how desperate these knocks were. You knew this time something real bad happened.

You opened the door and saw him holding his side, breathing heavily, sweater and shirt covered in blood around the area where his hand was.