Im sorry for your loss. From the video u put on youtube he sounds like he was a great friend and person. I do hope your sister is able to recover with out the surgery. That's never fun.
I'm sorry for her loss and yours. I hope she makes a full recovery. I had a similar experience myself, but it was the passenger in the other car who passed away. They were both drunk, but the driver survived while his passenger died on the road right next to me. It was quite a tragic experience. I'm glad that your sister was able to survive and Harison was a hero. It's hard to get through, but it will get better with time.
just make sure she does what the Dr. says, that will help, might ask him about taking some supplements with Calcium and other minerals to help the bones grow.
I hope she can suit again, Having something to look forward to helps healing
hope she will recover
I hope she can suit again, Having something to look forward to helps healing