Yeah, the guy that killed your wife & momma, depending on the continuity.
On an even more morbid note, Lex has two child killers on his side....damn.
Now, I want to see a Joker, Black Manta, and Zoom team-up for a Vegas road trip that would make Dan DiDio blush.
I would include dirty cop Sinestro, but with a former cop on trial in real life trial, I kinda legit hate him right about now.