Graeme McDowell, and the Open

So right about now its 1pm EST, and a guy from Northern Ireland is -6, to be the current leader. Who is this guy? I look at his stats he made 66k last year, and 2k the year before that. Could this be another darkhorse candidate to win the Open? or his he goin to fall to pieces after today. Even if he's not on top, after the rest of the field finishes, he still may be an intersting story to watch.