http://www.tvguide.com/News/Greys-Anatomy-Season-Finale-First-Look-1080798.aspx
http://tvline.com/2014/04/23/24-live-another-day-kim-bauer-returning-elisha-cuthbert-spoilers/
Question: What’s the plan for the Grey’s Anatomy finale? We know three people (Cristina, Leah and Shane) are leaving — are we looking at a Seattle bloodbath or is everyone getting on a ferry and sailing off into the sunset? —Andy
Ausiello: There will be a catastrophe in the finale — a possible terrorist incident in Seattle sends a flood of casualties to Grey Sloan Memorial — but it mostly serves as a backdrop to the episode’s main event: Cristina’s emotional (and non-deadly) exit. Speaking of said attack, scroll down for an exclusive first look at Stephanie tending to one of the victims in the May 15 closer.