I keep wracking my mind - what could be SO terrible, that even having murdered/disappeared his child, he would still stay silent? It would have to be something of similar severity IMO - for example, if I was JH and she was telling me she would get me locked up for something, it wouldn't be just drug use or even domestic violence....because those things are nothing compared to the death of my child and would not be enough to compel me to silence. I keep thinking to maybe a hit and run where there was a serious injury? Maybe a violent brawl or confrontation with someone who ended up severely injured? IMO the only thing, if I were JH, that would make me stay silent up to this point would be if EG knew/had evidence I had killed or grieviously injured someone (even that wouldn't keep me shut up if it came down to my kid, but maybe not for him?)....
Obviously, I'm just throwing out ideas and speculation - MOO IMO and all of that jazz