We know that you’re dying to know who “A” might be! Don’t worry — we’ve got our crack team of sleuths on the case, picking up even the tiniest clue for your mystery-solving pleasure. Here are the hints from “Know Your Frenemies” that may help us solve this thing for good!

Suspect #1: Mike Montgomery
Why he might be "A": Mike (Aria’s hot-headed brother) has never been all that easy to like. Now he’s canoodling with Noel and spreading rumors about Ezra. And Noel is certainly not to be trusted, since he even seemed to to have a role in Hanna’s cupcake fiasco. We never thought cupcakes could be used as a weapon!

Why he might be not "A": Mike might be unstable, but it just seems to be a result of angst from his parents’ divorce than due to actual malice. Why can’t his parents' break-up just cause him to do some adorable scheming, like in the film The Parent Trap?

Suspect #2: Toby Cavanaugh
Why he might be "A": This week, the girls received that video showing Ali with Ian, which would seem to eliminate Ian as a suspect for “A" (why would he incriminate himself like that?) Toby suddenly becomes a logical candidate for “A,” since fingers have been pointed at him for killing Ali for a while now. (Then again, can you really blame everyone? Toby’s one creepy dude.)

Why he might not be "A": That scene where Toby cowered in an alley made him seem less sinister and more sympathetic. And we figure he must be under a lot of stress if he’s even willing to sit down in a gross alleyway next to a dumpster!

Suspect #3: Lucas Gottesman
Why he might be "A": Two popular guys — Noel and Ian — both ended up in hot water this week. And anytime someone popular is brought down to size, we just assume that Lucas is to blame!

Why he might not be "A": Poor Lucas wasn’t even in the episode, and yet we’re still blaming him for what happened! But this new, softer “A” would seem to lead us to believe that Lucas could be involved.

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