I'm sure NO ONE is prepared for what these boys' parents are surely going through. There's no rule book, which is why they likely retained an attorney. I'm going to play Devil's advocate for a moment. The truth is, the parents are not always going to do what feels right in their gut. They're going to do what their attorney is telling them to do, which is most likely to keep QUIET.
I believe that these boys fall into one of three categories:
1. Know about LS's potential drug use (and were likely involved or supplied it themselves) but are unaware of what happened crime-wise.
2. Know about LS's potential drug use (and were likely involved or supplied it themselves) and only know about the crime b/c someone (perp) told them the next day.
3. Know about and were involved in drug use and involved in the crime.
If I'm right, there's a pattern here : drugs. Giving details to LE would only open themselves up to a civil suit. I'd bet that each attorney is saying, "Until there are charges placed upon you, do NOT talk." That doesn't mean that the parents don't WANT to come forward IMO
I'm not ready to judge these parents yet b/c I simply don't know what steps they have taken. They could be like me and drilling their son behind a closed door, and have details that point to his innocence. However, they could also have an attorney saying, "You cannot comment on this case whatsoever yet." Why bother paying high $ for the attorney, if you aren't going to listen to what he has to say?