I'm unique for a suspense author in that I don't have a specialty background. A lot of suspense writers used to be lawyers or crime beat reporters. I didn't even know a cop when I started out. I finally figured out that I could visit prisons - I just had to be willing to make the phone calls.
My dad was depressed a lot of the time, and there were a lot of things in his life that he never resolved.
I advise everybody not to save: spend your money. Most people save all their lives and leave it to somebody else. Money is to be enjoyed.