I'm supposed to swallow that Prometheus just murders three superheroes and no one notices? Well, I suppose if the JL did nothing when five of their members were killed by the new Mist, in Robinson's mind that tracks.
But I'm having a REAL HARD TIME accepting that he could manage to steal the Time Pool, the Cosmic Treadmill and a Zeta Beam generator and NO ONE would come looking for them, alert the JL or anything like that? Seriously?
I think his removing IQ's brain power is probably far more villainous than his superfluous murder of some C-listers, though you gotta wonder much of a super-genius IQ was if he fell for the old 'there's something in your drink' gag.