The Homelanders series!

A teenager wakes up and can't remember anything but apparently murdered someone. That sounds interesting, doesn't it? That's what the Homelanders series is about. I've finished the first two books in the series before I got bored of them. They're good books, there is a good idea, and they have some cool action scenes in them. Though, I started reading the third one and it didn't intrigue me as much as the other ones.  Even though I lost interest in them, you may not. If these books sound interesting to you check out The Last Thing I Remember and The Long Way Home by Andrew Klavan.