This has been widely discussed elsewhere, I don't see there is any reason to delete it, really. I read it on the DC forum.
Someone outside of the fandom who is a fan of Jake, reported being on the set of "Brothers" and getting a chance to watch filming and witnessed Jake getting a phone call telling him about Heath's death.
I think what makes this less believable is that it is unlikely Jake would have heard the news by phone. Someone would have phoned the director and he would have been told personally - by someone. That is my view.