At S.T.A.R. Labs, one of the monsters is being examined and has been conclusively proved that it was once human. It was also once an immigrant construction worker who was building Star Center, definitively linking Star Center with the monsters.
Later that night, Conner and Mia argue with Ollie over his decision to sleep with Joanna and he leaves to work out aggression beating up punks. He runs into another group of monsters, but Superman suddenly shows up to help him out.
But even with the monsters under control, Ollie's nightmare isn't over yet; Drakon has snuck into Joanna's apartment and murdered her.