imo, I think it's more likely than not, based on observations of my perp's family dynamic:

One son was always angry, macho, etc., and apparently still is (survivalist, right wing extremist). I actually witnessed another bullying a kid half his age at the time. If you'll forgive the vampire implication, at least two of 'em now involved professionally with young teen boys. Another kid became an LCSW...and I can only speculate that one may have dealt with it.

And they're all very obese. I was pretty shocked. I'll cite the Boston Univ. School of Medicine study on the connection between childhood abuse and obesity.