Comic/movie idea

Ok, you've got this kid who has black outs and wakes up around people who have been saved, and sometimes around people who have been killed. He wants to know if he is a hero or a villian, and if he can be a hero if it turns out he is indeed a villian. It takes place in a universe where all the big heroes are living. Superman, Batman, Flash...you know what I mean.

So he seeks out Superman cause he's in Metropolis at the time, and ends up accidently killing Superman with his powers, or so he thinks, I haven't decided yet. So all the other heroes are out to get him, when they find out. So he is saught out by the Villians and they show him his powers and try to manipulate him, but his power has it's own personality when he's not there (mentally) and it HATES to be manipulated, and kill a bunch of villians...so he then wakes up in the desert and wanders around trying to control his powers...

From there I'm still figuring it out...