They just threw their hands up and said "Hawkman is literally everybody".
....In fact, that is how it's going to end, isn't it? It's going to turn out that all the people he killed were also him. That everybody who ever lived, every hero, every villain, every victim, god, demon, monster, saint, man, woman, child, animal - they were all Hawkman.
Like in that one story.
What's that called again?
Oh yeah. "The Egg". You know. Like what birds hatch from.