Lightsaber blade to the head

Sabine engages a Death Trooper who's able to take on blaster shots to the body. It's until his helmet was damaged that she realizes that it's an undead, commanded by magic. Sabine decides to get her dropped lightsaber and turn it on, ensuring that the blade tears through the zombie Death Trooper's head. The zombie DT drops dead.

Example of:
Removing the Head or Destroying the Brain