I enjoy the Dexter show as well and like the following poster haven’t killed anyone nor even seriously entertained the idea. Anyone who watches the show realizes that Dexter knows he isn’t ‘right’ and agonizes over his ‘dark passenger’. He spends most episodes wanting to be ‘normal’. The show is a study of human failings and how we deal with our own in a socially acceptable way.
Dexter is one of my favorite shows.
As the seasons progress, we realize that Dexter is not the monster. The people he kills are the monsters.
He has his Dark Passenger, but he still has freewill.
And one more thing: I thought about killing people long before I started watching Dexter. /joke