Did I miss a episode or something?

[0Raiser]

In the beginning of this episode, there was a preview of past episodes and it shows some red shirt girl using a knife or something to stab cloieeee? I don't remember that happening or remember who that girl is

[devilicus rebel]

That was Linda Lake in the season 6 episode "Hydro". It aired something like two years ago.

[0Raiser]

omg lol I don't remember >_>