Kill Obi-wan.
From Create Your Own Story
Your apprentice lies helpless on the ground, seemingly unconscious. You raise your lightsaber high above your head, preparing for the killing blow. Just as you are about to bring your weapon down, an intense pain erupts in your neck. Blood pools in your mouth and begins to flow. You can't speak, feel the blood flowing from the back of your neck around the object that protrudes from it. Turning around, you see Queen Amidala backing away.
Reaching your hand back, you use the Force to withdraw the weapon she had used and bring it to your hand. Looking down at it, you recognize what had been R2-D2's electrical prod, covered in your blood. The world begins to turn black as you feel weaker by the second. You are barely able to recognize that you topple over as the blackness swallows you.
Your Dead.