Death Note

Death Note is a popular manga and anime series created by Tsugumi Ohba (writer) and Takeshi Obata (artist).  It focuses on a high school student named Light who comes into possession of a "Death Note" which allows him to kill anyone at any time in any way possible as long as he knows their name and face.  He gets the world's attention by using the Note to kill criminals and gets into a war of wills with "L," the mysterious detective sworn to solve the case.

In this post you'll find both manga artwork by Takeshi Obata and anime artwork as well.  Just about everything referring to Death Note has been released in the U.S. by Viz including the original manga, the anime series, and two live-action movies.