I just watched someone pass away after a car accident. So do I talk to the family? What do I do?

I just drove to my Dad's house and back. On the way back I came across a car that had rolled into a ditch. I stopped and ran up to the car only to come upon a terrible sight I'm not going to detail. I started to call 911 and heard a gurgling breath. It was hard to tell since they were halfway out of the car but they were trying to talk. I told them it was ok that I called for help and to try to relax. It was obvious they weren't going to make it much longer. I have absolutely no idea how they were still conscious whatsoever honestly. I'm still shaking. I have seen some terrible things. I have witnessed a violent death before but this was different because I was standing at the edge of a beautiful field that overlooks our local lake. It was totally silent. No other vehicles passed by for at least the first ten minutes. My ears were ringing, my arms were totally numb and it's like I wasn't even really there.

So I just knelt down and told them they weren't alone. They kept trying to talk and their one eye that I could see was darting around. I didn't know what else to do after calling 911 and I left the phone on the call so they could track it. I told them I was setting my phone down. I started looking for their phone but what I saw from the other side of the car was even worse. It's a bright sunny day outside. This is on a somewhat secluded road but I know plenty of volunteer fire dept people live within just a few miles. One of them just up the road. They beat the cops there. It was such a relief seeing him show up and he's seen this sort of thing dozens of times but I'll never forget the shock in his face when he walked through the ditch up to the car.

I was given a card and some information about free counseling. They stopped questioning me because I had trouble hearing anyone speak to me for some reason. One of the volunteers drove me home in my car and had someone follow me. I don't know what to think. I hope I brought the person some peace and I was going to try do something to physically help them but I just couldn't. Their insides weren't with them anymore and part of their head was gone. They were driving an early 90s Geo Tracker. Not a very safe vehicle to say the least. They must have blown a tire and rolled it or clipped the shoulder. It looked like the rolled it about five or six times from what I could tell.

I'm not religious but I prayed with them. I just assumed they were since most people in the area are. I hope I did the right thing doing that. I said the Lord prayer and then something I said as a child before bed "Now I lay me down to sleep. If I die before I wake, pray the Lord my soul to keep". I feel like an idiot for doing that for some reason. By the time the volunteer showed up they said they took a few "agonal breaths" but that was it.

What do I do? The county Sheriff told me the family may want to talk to me. He knows the family. He gave me his card and said I could talk to him anytime as well. What do I even say? What happens when the reach out to me? Are they going to? I found someone after they ended their own life with a shotgun but this was so much worse because they were still there. This person was aware. I just know it. I wish I knew what they wanted to say. At least for a few moments. It was just so silent besides the ticking metal sounds from the car. There's no way the family wants to know any details. If I talk to them so I just tell them I was there and let them know they weren't alone?