Scans_Daily

I think most of them were mentioned as having been killed in a Justice Society issue to amp up the new villain Roulette, who ran the Meta-Brawl, a super-being cage fight to the death where characters were unceremoniously killed off off panel.

It was one of those acutely annoying "Look at the posters on the walls and see all this D list characters we've killed, aren't we cool? You'll either not know who they are, so it has no impact, or do know who they are, in which case it will do nothing but irritate you"