Board Thread:Theories and Rumors/@comment-30938718-20180720095904/@comment-34175192-20180721223502

Emperor Serpentine wrote: I just remembered that the Oni Mask of Vengeance still exists. Also, we never saw Killow get captured by the police.

Season 10: Killow's Revenge?

TBH I think they caught him off-screen and broke the mask. The mask was broken on screen.