Panda had an OP helmet named Nigger. And also started greifing.However I believe panda or Umadcat (the owner of the plot he was greifing) had fixed it. He also had speed hacks. Thanks for your time, screenshot below. (Oh, I got it cause I believe I or someone killed him)

Thank you, banned pandamonium31 and destroyed all the items in this player's inventory and enderchest.