There's Another Dead Body on Pretty Little Liars, but Who Is the Killer?

Although it seems like she's Sara's partner in crime, Jenna didn't look happy to see Sara talking to Emily. What's more, Sara tells Emily that she's trying to protect her. Sara is about to say from whom, but Jenna overhears and purposefully interrupts their conversation. Maybe Jenna realizes that Sara isn't one to be trusted around the girls and has her killed. That would certainly get her to shut up for good.

Mary still claims to be the victim of Archer's scamming and her sister, Jessica DiLaurentis. But we have a feeling that she isn't all that innocent. Mary is in charge of Alison and is able to watch her like a hawk. It definitely looks like she is abusing that power. We also can't forget that she was working with Archer! It's very possible that she knows that covering up what happened to Archer is in her best interest. Could it be she's killing off everyone involved in Jenna's group? Could Noel and Jenna be next?

This is one of the least likely scenarios, because it looks like Archer's actually dead. Spencer and Hanna dig up his grave to double check and his body is very cold. But we've also had characters come back from the dead before. If Archer is still alive, then it's possible he's back to get revenge on all of those who know his true identity. Why not start with the weakest link?

After making a big return, we suspiciously haven't heard anything from Noel. Why is he back? It seems like he's working with Jenna, but we don't know if he has any allegiance to Sara. Maybe Jenna grew suspicious of Sara but had Noel do her dirty work for her. Maybe he is double crossing them and has gone rogue. Either way, he's worth keeping an eye on.