Niels with http://darthpooky.deviantart.com/ ’s character Lorenzo, a paranoid and unlucky actor.
Niels doesn’t just go around killing random people. He doesn’t wake up in the morning thinking, “Hm, I feel like killing someone today” Killing is messy and afterwards you might even have to deal with the police, so a person has to be a major horn in Niels’ side before he goes to extremes like this.
That means either Lorenzo has done something very bad, or Niels isn’t actually going to kill him, but just wanted to beat him up a bit and give him a scare. Take your pick.