He’s smart. He’s lovable. He’s Dexter Morgan; America’s favorite serial killer, who spends his days solving crimes and committing them. This is Dexter Morgan’s (Michael C. Hall) kill kit knife and blood collection tools. The stunt filet knife can be seen multiple times, and the other tools are used and seen throughout the series. The droppers and syringe originally had remnants of fake blood inside. As Dexter kills each of his targets, he takes a drop of their blood and puts it on a slide to keep as a souvenir.