F12 report

IGN of reported player:
BadBoyM

Reason:
when i flip him he dosent jump
when he will go up he press f12 on the keyboard
and he will teleport
and kill me
"n-stepping or force lagging"
then he said to me "report me"

Proof/Evidence:
https://www.sendspace.com/file/yiau8a

A single time of f12'ing isn't enough to warn the user, the user has been verbally warned.