Major Spoilers! One of the big mysteries fans were left to ponder after Season 1 of Bates Motel is who killed Miss Watson (Keegan Connor Tracy)? In the season finale, "Midnight", Norman Bates (Freddie Highmore) is seen approaching Miss Watson's bedroom, although he later tells his mother, Norma Bates (Vera Farmiga), that he doesn't remember parts of the night. The season ended by showing Miss Watson dead on the floor with her throat slit. To add to this mystery, A&E has released a new video that shows Miss Watson alive for the last time before her murder. Take a look at this intriguing footage, then read the official description for this video.

"This is the last time we see Miss Watson before she is murdered. Check out this home video. Did Norman kill Miss Watson or was it someone else?"

Season 2 of Bates Motel returns Monday, March 3 at 10 PM ET with "Gone But Not Forgotten".