Should I file a police report on my friend? It would get him arrested...?

You can do whatever you want the problem will come when SS looks at the account. They will not be able to determine which money belongs to which person. This will then be a problem if and when you qualify for other benefits ie.

Medicaid snap etc..

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.