Believe me, Nancy, a lot of their friends were doing the "what if" or "if only." Mine was very small compared to others. Great, wonderful family. Their biggest mistake was accidently leaving the front door ajar when the husband picked up the newspaper on New Year's morning. The guys who did it weren't from around here, but had someone who was show them neighborhoods to target. I won't even begin to go into it here.
I was going to answer that, as much as I screwed up when I was younger, the mistakes that I'd made, didn't matter, because my life is really great. But, then, I thought about my "what if." Of course I couldn't have talked them into my neighborhood, and I wouldn't have tried that hard, because the neighborhood they went to was my and my DH's second choice when we bought our house. They lived close to friends and the neighbors loved them (hell, the whole city did; they were very well-known and actively involved, as were their daughters, in their schools.) Unfortunately, if it hadn't have been them, it would have been someone else. Their murderers had killed before, and went on to kill their accomplice and her family four days later.
Believe me, I have had quite a few things in my life that made me sit back and take stock. This one, well, I'm not sure I've learned everything I need to from it, yet.