<P> At the end of "Cover For Me", Big A cuts a loose string on a wedding dress, foreshadowing the events of "Unbridled", </P> <P> During the season finale "A is for Answers", CeCe is detained by Detective Gabriel Holbrook and questioned about Wilden's homicide . She confesses to knowing who murdered Bethany Young (the girl buried in Alison's grave) and that Alison is still alive . At the end of the episode, Jessica's dead body is dragged across the grass as Charlotte buries her on the Hastings' backyard . </P> <P> In "EscApe From New York", CeCe is taken away by officer Barry Maple to be sent to jail, however, at some point she knocks him unconscious, steals his cop car and heads off to New York where Alison and the Liars are . Drake finds Ali and asks for her help since Alison owed CeCe a favor for helping her out in Ravenswood . Alison offers her a plane ticket to France and she leaves the country, under the alias of Vivian Darkbloom . When Emily catches Alison, she divulges that CeCe was being paid by Ezra for information . Ali further claims to have asked her to dress up as Red Coat only to distract "Big A". However, it's revealed much later that, unbeknownst to Alison, CeCe was the person who stole the "A" game from Mona and donned the Red Coat disguise during some of her missions . Ali also reveals that Drake was accountable for Wilden's murder . </P> <P> Drake is absent for the following three episodes, seeing as she headed to France . "Big A" later makes a comeback in "Miss Me × 100". She blows up the Cavanaugh's house and is seen texting the Liars while moving her belongings into a new lair . </P>

When do we find out cece killed wilden