If you haven't watched The Walking Season 4 Episode 2 "Infected," then you will want to stop reading right now. At the end of the episode, there is a very shocking scene, which has generated a tremendous amount of buzz on social media. AMC has officially released the ending of The Walking Dead "Infected" online, so that those who want to re-watch, search for clues, and analyze the ending can watch it again. We also imagine part of AMC's motivation for releasing the ending is so that those who aren't currently watching The Walking Dead, but have been hearing all the buzz on social media can check out exactly what they've been missing. At the end of the episode, Tyreese goes to visit his girlfriend Karen, who contracted a deadly virus and is in quarantine. Tyreese has flowers in hand and a big smile on his face, but when he gets to Karen's cell, there is blood on her pillow and blood on the floor. Tyreese follows the trail of blood to the prison courtyard, where he finds two burned bodies. He recognizes that one of the burned bodies is Karen, because Karen's bracelet is on the charred arm. So the big question is who killed and burned Karen? Was it the same person who has been feeding rats to the walkers? Or was it someone else who was trying to stop the spread of the virus? Check out the full video from AMC below.