I need a great suspenseful crime thriller novel?

I really enjoyed Karin Slaughter's Triptych. I found the characters interesting, the storyline engrossing without being overly obvious or headbangingly ignorant. There is no love story as a major part of the plot and the main character is a man. Check it out: a href="http://www.karinslaughter.com/" rel="nofollow"http://www.karinslaughter.com//a