From what we know from the deaths sombody froze this guy, sawed off his head, took his brain, killed this woman by stabing her multiple times with diffrent knives, put her up against the bannister of her stairs, and left the daughter unharmed.
Well as we go around and point all of this is stylar but what if it is a group of people that have the ability to freeze people, cut open their heads, take the brains, teleknesis (move things with their minds), and more all lead by Stylar or someone else.

I was thinking along the lines of a possible group of villians myself, yeah. Seems like a lot for just one guy.

And I believe it's Sylar, just so...you know...

A group of villains would seem more likely, but Sylar may just be really, REALLY powerful. It would be better if he was really powerful cause that would make him harder to beat.

Finaly, someone who belives in the same theory as me. Ive been rant this in another thread for the last two days.

I belive that Sylar has a few followers that he uses to gather the brains of the other gifted.