The only kill on his conscience is the GL who sacrificed his life to save his people.
I really hope this at least gets continued in the comics. That seems like a fairly safe bet, I mean, Smallville got comics. Batman Beyond got one a decade after the show.
And, while I don't want to have too much false hope, Family Guy and Futurama (and Ren & Stimpy, to much lesser extent) have taught in animation, the end isn't necessarily The End.
I liked the finale, though would have thought that with the fate of the entire universe on the line, the Corp would have called in more help. Blue energy needs to stay away from Manhunters, and maybe the Reds wouldn't send anybody, but the Star Sapphires almost certainly would. It would have been cool to see some Hawkmen as well.
I liked that they had the Hand of the Presence, or whatever it was, in the pre-Big Bang visuals. It just looked very cosmic and ominous and enigmatic.
"Family Guy jumped the shark when i stopped getting high every time i watched it. " - Alex