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Reddit Has a Mind-blowing Yellowjackets Theory That Will Change the Whole Way You Think About *This* Character

Duty calls...

yellowjackets-season-3-murderer-theory: A photo of Van, Shauna and Tai from Yellowjackets sitting on a couch.
Colin Bentley/Paramount+ with SHOWTIME

Warning! Yellowjacket's Season 3 spoilers ahead!

Long time no see, citizen detectives. Though theYellowjackets hive have had some complaints about the pacing of the plane crash drama's newest season, things seemed to pick up a bit around episode four with the death of one of the remaining seven confirmed adult Yellowjacket survivors, Lottie Mathews. A surprising death considering season two's accidental murder of another main character, Natalie "Nat" Scatorccio at the hands of Misty Quigley.

What's strange is that even as the season creeps along, as of episode seven, we still don't know who the killer was—despite multiple characters (Misty, Shauna and Walter) doing their damndest to figure it out. But after some serious Reddit deep-diving, I'm absolutely convinced of an unlikely murderer to be found in Jeff Sadecki, Shauna's husband.

yellowjackets-season-3-murderer-theory: A photo of Shauna and Jeff from Yellowjackets.
Colin Bentley/Paramount+ with SHOWTIME

As far as we know, Lottie's adult arc was far from over. After running a cult, staging a makeshift "hunt" which nearly killed Shauna and actually ended up killing Natalie, being sent to a psychiatric ward and subsequently being released from the ward, briefly living with the Sadeckis, becoming unreasonably close with Shauna's daughter Callie and finally, giving Callie Jackie's heart necklace (one which marks a person for death)—many loose ends have yet to be tied. So why is she dead?

We're as close to figuring out the killer as we are to knowing why—which amounts to very little. Many viewers have been led to believe that Shauna or Other Tai could have killed Lottie—they sure have reason to—but, Redditor grendila_ makes a strong argument for the less obvious happy-go-lucky goofball father, Jeff, as the cold-blooded killer. And they make a very compelling case for this accusation.

yellowjackets season 3 murderer theory Jeff Scratches Screenshot
Paramount+/Redditor: Paramount+/Redditor: grendila_

The facts grendila_ presented on Reddit:

  • "In episode six, in the scene where Shauna tells Jeff that Lottie is dead, for a millisecond you can see some scratches on his hand, but at 11:57-12:32 you can see some scratches on his hand much more clearly. The way these scratches look are defs not from a cat because cat scratches are more thin and these look like fingernail scratches!"
  • "The way Jeff acts when Shauna tells him Lottie's been killed. His acting is kinda suspect. If you compare [his reaction] to the infamous "There's no book club?!" scene, he just doesn't seem so shocked, he's pretending to be, but its weird."
  • "I know some of ya'll might think he was at the nursing home, but he's there during daylight and arrives home well after sunset—also Shauna had enough time to go to MULTIPLE recuse places to find a cat, including going into Manhattan and back and still made it home before Jeff! Maybe Randy took him in or he borrowed a car?"
  • "Back to the scratches—Misty got DNA results from the matter underneath the nails, proving that it was human matter—I think they're gonna test it with Shauna's hair that Walter has and find its not a match [turns out it was a match in episode seven!], or else its Callie's hair and there is a blood relative match and they're (Misty and Walter) gonna think it was Callie but it was actually Jeff!"

After reading all the evidence, and remembering that Jeff was also the adult Yellowjackets blackmailer for much of the first season, not to mention his ability to quietly assist in other murders on the show (Adam and Kevyn), I'm ready to believe this theory.

In addition, in episode seven, Jeff also seems to be a bit on edge at the motel the Sadeckis are staying at. But what he thinks are bedbugs might just be anxiety hives. And you might just be a *little bit* uneasy if you had just committed a murder, especially when your daughter is also suspicious of her mother being the killer. And truly, I'd expect nothing less from a husband and father who would do anything for his family.

I guess we'll just have to wait and see what episode eight has in store for us...


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