Now, with Season 2 looming (two-hour premiere airs Sun., Apr. 1, 8 p.m. ET), do viewers even remember the major players? Or care?
We can't answer the latter -- the ratings will be an interesting thing to track this season, for sure -- but if you need a refresher on "The Killing," we've got you covered with our handy whodunit guide, catching you up on what happened and where we left off, and also weighing the odds of each major character being "The Killing's" killer.
Of course, any one of these people could be the killer, and the odds will fluctuate as "The Killing" Season 2 goes on. AMC has already stated that we won't know the identity of Rosie Larsen's killer until the Season 2 finale, in fact. (Yep, that drains a bit of the suspense, doesn't it?) And it's also highly possible that none of these people are to blame and we haven't even met Rosie's killer yet. If the first season of the series proved anything, this show has no problem spending time on largely misleading leads, only to pull a big twist (or three) at the last minute, so we'll have to stay tuned to see what direction "The Killing" goes.
For now, click through the slideshow below for a reminder on where everyone we already know stands, including arguments for why certain non-suspects shouldn't be overlooked. And if you have your own theories, share them in the comments.
"The Killing" Season 2 two-hour premiere airs Sun., Apr. 1, 8 p.m. ET on AMC.