Hello, I was the Staff Administrator who deemed this character kill was valid simply due to the reasons I will state below.
-You were given orders to stop moving and look at a certain wall, while you decided to keep moving and make eye contact while told not do so.
-You then started walking into the wall that was close to the edge so you can jump off....
-You also had no fear for your life whatsoever so this makes in my opinion a valid PK.
Good luck with your appeal!