Arrow Season 3 Spoilers: Who Killed Sara Lance?

The Season 3 midseason finale of Arrow finally revealed the identity of Sara Lance's killer from the premiere episode. Or at least, it seems that way.

Malcolm Merlyn showed Oliver a video of his sister, Thea, killing Sara on the rooftop and revealed he had put his daughter under the influence of a mind-control drug to do it. Of course, this show has thrown some curveballs at us in the past, so all may not be as it appears here.

So let's look at our original predictions and see how we did.

Ra's Al Ghul:  Ra's is the main villain for Season 3, so it would be almost too obvious if he were the one to have killed one of his League of Assassins members. But it would be a logical way to introduce Matt Nable's character and would immediately give Oliver a reason to want to bring him to justice. Ra's would likely be upset that Sara deserted the League in the first place, and if he wants to take out Oliver or attack Starling City, then this would be the way to start. Sara also looked shocked that her attacker was even there, and she would more than likely be stunned to see Ra's in Starling City.

Update: We were totally wrong on this one.

Malcolm Merlyn: The Dark Archer has taken his daughter and Oliver's sister, Thea (Willa Holland), under his wing, but his motivations remain unclear. He likely wants revenge on Oliver for the events of Season 1, and what better way to take it than to kill his former love and close ally? Sara did die from arrow shots, after all.

Updated Prediction: Technically, Malcolm did do it. He just didn't fire the arrows.

Nyssa Al Ghul: This one is less likely because Nyssa and Sara were lovers at one point, but it would certainly make for an interesting twist. Perhaps Ra's demanded that his daughter prove herself after she let Sara go in Season 2. Or maybe she was brainwashed into doing it.

Updated Prediction: Wrong again.

Other possible candidates: Roy looked like the killer for a minute, but the episode "Guilty" pretty much ruled him out altogether. Sin is scheduled to return early in 2015, and she will reportedly play a pivotal role in the entire mystery. Could she be the killer? Finally, Thea has become a prime suspect amongst many fans, but that, too, seems like a stretch.

Update: Thea did it.

How do you think Arrow will resolve this conflict when Season 3 returns? Let us know in the comments section.