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If you’ve been watching Mare of Easttown on HBO, there’s a good chance you look something like this right now:

Man talking intensely in front of conspiracy board


I certainly do.

We’re only three episodes in, and it seems like for every answer we get, two new questions pop up.

Twitter: @CAKennedy6

The central mystery revolves around who killed Erin McMenamin, but there’s also the unsolved case of Katie Bailey’s disappearance. Are the two cases connected? I need to know right now, HBO.

For the sake of theorizing, here are all the people we’ve been introduced to who could be the killer:


Frank Sheehan


Now, after Episode 2’s bombshell of a cliffhanger, Frank was looking pretty guilty. We don’t know for sure that he’s not the father of Erin’s baby, but I believe him that he was just helping her out as a concerned teacher…for now. Whether he is or isn’t the father, we can’t dismiss him as a suspect yet.

Twitter: @itssmayraaa


Dylan Hinchey


Dylan can swear up and down that he had nothing to do with Erin’s murder, but he certainly has motive, especially if he found out that DJ wasn’t his biological child. Dylan is an obvious suspect, and he’ll continue to be one until we get concrete evidence that it couldn’t have been him.


Brianna Del Rasso


Brianna is another obvious suspect, but so far there hasn’t been any evidence that proves her innocence, and the show made it clear that she hated Erin — plus, she is NOT a nice person. The fact that her dad is acting so aggressively towards Mare (harassing her in public, throwing things through her window) doesn’t make Brianna look any better.

Twitter: @MovieManiac89


Dylan’s parents (either one of them)


Dylan’s parents seem to really love DJ, and it’s not inconceivable that they wanted Erin out of the way so that Dylan would have sole custody of the baby.


Kenny, Erin’s dad


Kenny seemed shocked and devastated when he got the news about his daughter’s death, but that could have been an act. We know he wasn’t particularly nice to Erin and wasn’t happy about financially supporting DJ. The fact that he tried to kill Dylan only proves that he’s capable of murder. He could have killed Erin during an argument and gone after Dylan for getting her pregnant in the first place.


Father Dan Hastings


There’s no reason to suspect Dan just yet, but there’s also no reason to think he’s totally innocent. He hasn’t really become important to the story yet, but I’m willing to be we’ll learn more about him, especially since he works with Deacon Mark. He’s also a priest, which, on a show like this, make him instantly suspicious. I don’t make the rules.

Twitter: @theroyalistkate




Faye, like Dan, is a member of the Sheehan family who hasn’t become central to the story yet. All we know is that she doesn’t like Mare, and a lot of people have mentioned that she’s a good person with a good reputation.




Look, I don’t want to think Helen had anything to do with Erin’s death, and as far as we can tell, she had no motive. But she was awake when Mare got home at 3:30am on the night of the murder! She said she was up because of leg pain, but I am suspicious of everyone.


John Ross


John is Kenny’s cousin, which would make him Erin’s uncle. He’s also married to Lori, Mare’s best friend, and he himself is Frank’s best friend. TBD if he remains a secondary character.


Officer Trammel


This one is probably a long shot, but think about it! He started working as a cop in Easttown the morning before Erin’s body was found. He seems to have a problem with blood, but that could be something he made up to seem less suspicious.


Erin herself


I think there’s a small possibility that Erin shot herself by accident. It wouldn’t explain why her body was found in the river, but I’m not ready to rule it out just yet.


Richard Ryan


There’s something a bit too suave about Richard, you guys. I know he was with Mare on the night of the murder, but his sudden arrival in Easttown and his interest in Mare’s life makes me think there’s more to him. Even if he’s not connected to Erin’s death, it wouldn’t surprise me if he had something to do with Katie’s disappearance. There’s also the fact that he’s played by Guy Pearce, which implies his character is important. Mindy Kaling agrees!


Deacon Mark


If Episode 2 made Frank a major suspect, Episode 3 just did the same thing to Deacon Mark. Not only was he the last person Erin spoke to on the phone the night she died, but he’s had her bike all this time! And he dumped it in the river! We can’t say for sure that he’s the one who killed her, but he’s definitely more involved than he’s letting on.

Twitter: @itssmayraaa


Any combination of two or more characters


Everyone in Easttown seems to be related in some way, and I wouldn’t be surprised if that closeness extended to helping someone cover up a murder. There’s a good chance this season ends with more than one person on this list being guilty.

The following people are technically still suspects, but I think it’s highly unlikely that they had anything to do with Erin’s death:

This is purely speculative, and I may eat my words later.


Mare Sheehan


Mare is far from perfect — the way she treats Carrie is awful — but I don’t think she’s a murderer. She has no motive, and logistically it’s basically impossible for her to have done it. The only reason she’s on this list is in case the show decides to do a Gossip Girl-style ending.


Colin Zabel


Colin is a newcomer to Easttown like Richard, but he seems like he genuinely just wants to help Mare solve these cases. And, is it just me, or does he seem to have a bit of a crush on her? Anyway, he’s probably not guilty.


Lori Ross


Lori is Mare’s best friend, and she’s the only person who Mare seems to actually like. Their bond is really strong, and it would really random for Lori to have anything to do with the murder. Still technically possible, but unlikely.


Siobhan Sheehan


Siobhan was the last person to speak to Erin, but she was trying to help her. Other than that interaction, it doesn’t seem like Erin and Siobhan knew each other very well. Siobhan seems like a pretty normal teenager, more worried about her band than committing murder.


Carrie Layden


Carrie’s got other things to worry about — like trying to see her son (Mare’s grandson) — and it wouldn’t surprise me if she had no idea who Erin even was. It wasn’t her…I think. She has a bigger role to play still, but it seems like it’ll have more to do with the Sheehan family than the murder.


Dawn Bailey


Like Carrie, Dawn’s got too much on her plate right now (missing daughter, cancer) to be going around committing murder just to make Mare look bad.


Chief Carter


Mare’s boss is a saint of a man for being as patient with her as he is, because she seems like a nightmare to work with. She steals evidence, for crying out loud! Chief Carter does not have time for this — he just wants these cases solved, thank you very much.

Are there any suspects you think I missed? Do you have any theories of your own? Discuss, please!

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Me, watching Mare of Easttown each week thinking I’ve figured something out.

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