User blog comment:Aegis Runestone/Does anyone else dislike Lucy being... *spoilers*/@comment-3981209-20120416203412/@comment-4729088-20120417014145

Have you played the Lost Archives DLC? Vidic attacked the Hideout to collect the recordings of Desmond's Animus sessions. William didn't know she had sided with the Templars, he thought she was still an Assassin. He sent messages to Shaun more than anyone though.