Yep. He started out as a cop, still alive. By the end he'd been murdered, setting up the Spectre as a character. Then it got canceled.

Hopefully the introduction of the Spear of Destiny means we'll at least get some kind of reference to The Spectre. They tend to go hand in hand in DC Comics.

Yeah I remembered Black Siren right after I posted that. Not sure how Prometheus would access Earth 2 though.

I'm guessing Laurel is a hallucination brought on by tainted/dosed vodka served by the attractive reporter, who is Prometheus/Dolph Lundgren's daughter seeking revenge. They lingered on that vodka bottle a hair too long, and it was Russian.