Uh... I don't quite get that last part but yeah, I watch Dexter and it's pretty damn good.

I'm about 92 percent sure this is illegal in several countries

Anyways, I would kill randomly. Im not a serial killer, but if I were, I wouldn't discriminate.

Ezio Auditore. Give him a taste of his own fake cold blood.

Justin Bieber, every rapper, Skrillex and all those dubstep retards, anyone who thinks Kurt Cobain was amazing, socialists/communists, disgusting drug addicts, thieves, other killers, rapists, fat people who blame their fatness on society or non-existent medical conditions, people who frequently make simple grammar mistakes (such as they're/their/there), vegetarians who think they're saving the world by being vegetarians, smug atheists who start arguments all the time and try to convert religious people to atheism, religious people who come door to door and badger people to join their religion, Bill O'reilly, lawyers, people who say "it's not the heat, it's the humidity", intense feminists, anyone that orders steak well-done, people who talk through movies, hipsters, bandwagon jumpers, people who walk around with an underserved sense of entitlement, animal abusers, wife beaters, two types of lawyers: the ones that file frivolous lawsuits especially on doctors and criminal defense lawyers that get criminals off the hook and released back into public by finding cheap loopholes in the law, welfare bums (people abusing welfare that aren't looking for a job)...

if marks would be done, no one would live anymore^^

George Lucas for destroying my childhood with the modern Star Wars movies, and Tingle...

The pope.

TheAngryAtheist because he is angry and loud.

Then I would retire and be done with my Serial Killer career.

Nailed it.