Zoom is from Earth 2 since the theory of the multiverse is true zoom is dieing and needs a speedster speed to stay alive so he will kill anyone in his way and will do anything to live also he has had a tragedy when he was a boy his father killed his mom he also got his powers from the particle accelerator while getting electro shock therapy and is a demon
Lighting is blue he is dead kinda but serves as a guard of the speed force he is now called black flash
