Hugs Momma! I lost my 19 year old son in a car accident 2 and a half years ago so I know where you are at on this. Luckily, we had a life insurance policy on our son and I was the benificiary. I was able to pay off his funeral and have some left over to help with our expenses as we were not working at the time. I tell everyone, get a life insurance policy for your kids the second that you can. Ours was only 8 dollars a month, one of the best decisions we ever made
I had gone through a mess with our bank just a few months before our son died with them putting money into our account that should have gone into his and back and forth. I tried calling and talking to them about it but they wouldn't talk to me as he was the primary on his account. He had learning delays and was lost in dealing with this so I changed banks just a month before he died and set him up a new account with me primary on it. He still could use it with his name just like before but I knew I could check it and have access to it if needed. That day came a month later when he was killed. I was able to close the account without any problem because of the changes I had made a month earlier. I shudder to think of the hassle I would have had with US Bank over trying to close his account if I had stayed with them.
As far as Facebook, I still have his account open in his name. Someone had apparently hacked into his account and was trying to close it but i found it in time and changed the password. Like you, it is my only link with some of his friends.