Here's a Full Breakdown of Everyone Who's Killed on I Know What You Did Last Summer

Based on the 1973 novel of the same name by Lois Duncan, Amazon Prime Video’s new suspense series I Know What You Did Last Summer is turning out to be a wild ride so far. The story follows a group of teenage friends who accidentally kill Lennon Grant during their graduation-night rager. A year later, they all reunite in their hometown, Wai Huna, HI, only to come to the shocking revelation that their transgressions from last summer aren’t a secret after all. Someone knows the truth and starts picking them off one by one, leading the crew to scramble to get to the bottom of it before they run out of time.

As dark as the premise is, the teen drama quickly devolves into full-blown slasher territory. Suffice it to say, keeping up with all the spine-chilling events and blood-curdling deaths that take place in the Hawaiian coastal town becomes increasingly perplexing. So if you’re wondering which player is still in this deadly game of chess, here, we’ve broken down all the deaths on I Know What You Did Last Summer.

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Lennon

The pilot episode presents the viewers with the key moments leading up to Lennon’s death, which kicks off the show’s main plot. At their graduation party, twin sisters Alison and Lennon get into an explosive argument when Alison finds out Lennon slept with her longtime crush, Dylan. After their fight, Alison bolts out of the room, and in her haste, she takes off with Lennon’s jacket. She goes and sits in her car, in desperate need of an escape from the bustling party.

Meanwhile, when Lennon’s group of friends see a cop on the premise, they run to avoid getting caught because they’re drunk and high on drugs. They spot Alison sitting behind the wheel in Lennon’s car (dressed and styled identically to her twin sister) and naturally assume she’s Lennon and ask her to drive them away from the house. Alison, already emotionally distressed about her fight with Lennon, doesn’t correct them and plays along. However, when she momentarily takes her eyes off the road while driving, she winds up accidentally hitting Lennon, who was walking on the road. When they check her pulse, they find, to their horror, that she’s dead. However, Lennon’s friends all believe it’s Alison who’s died, not their friend Lennon.

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Coach Eric Craft, Johnny's Fiancé

A year after the accident, Johnny is now engaged to Eric (their former high school coach). While Alison (pretending to be Lennon) is the first one who receives the stalker’s taunting message sprawled across her bedroom mirror in blood, Eric is, unfortunately, first to fall prey to their sinister machination in episode two. When Johnny drives to the gym to help Eric prepare for sports camp, he finds his fiancé motionless, trapped under a heavy barbell. Without realizing the full scope of the trap, Johnny tries to remove the weights, only to release an adjoining dumbbell that pelts into Eric’s face, killing him.

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Johnny

As if seeing Eric smashed to death wasn’t enough for one sitting, episode two comes to a bloody end with Johnny himself getting killed. The mysterious revenge-seeker repeatedly bludgeons Johnny over his neck until he’s ultimately decapitated. Then, the murderer disposes of his severed head on the precise spot Lennon was killed last year, a foreboding signal for the rest of the witnesses from that night.

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Dale

Dale is a good-for-nothing sleaze whom we see briefly stop by on the side of the road on the night Lennon is killed. As Alison grows increasingly suspicious in episode three that he’s the murderer stalking and threatening her, she decides to go back to his workplace, Snak ‘N Stuff, to confront him. But by the time she gets there, he’s already been murdered. Thankfully, the showrunners spare the gruesome details of this particular slaughter. Instead, we get a final glimpse of his lifeless body, which gives insight into how he was killed: he has a plastic tube of Blue Crush slushy forced down his throat, leaving his corpse looking scarily blue, as if frozen to death.

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Officer Doug Cruise

Doug is a colleague of Lyla, the chief sheriff of Wai Huna. While sifting through Dale’s bank records following his murder, Doug tracks his bitcoin payments back to Lennon’s OnlyFans account (where she would post explicit sexual content under her sister’s username, @AllyWally). But before we could see him following up on this information, he becomes the show’s next victim.

Following last summer’s incident, the OGs and the twins’ father, Bruce, tell everyone Alison (aka Lennon) ran away and never came back, and they engineered a resentful note from Alison to back up their story. But when Lennon’s body turns up in the water a year later, everyone believes the note was a suicide note.

When the town gathers to pay their respects to Lennon at her funeral, the mysterious killer pounces on the opportunity to do away with another victim. In the final moments of the third episode, Doug is found by Courtney (Riley’s mother) in the bathroom of Bruce’s restaurant with his throat brutally slashed open.

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Harold

Harold is a sweet chef at the restaurant owned by Bruce. Though we don’t get many glimpses into his personality, we know he’s a brilliant cook who genuinely cares about Bruce and his daughters. When Lyla opens an occupied bathroom stall after recovering Doug’s body (also in episode three), we see Harold sitting on the toilet with his brains smashed onto the wall behind him.

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An Unknown Victim

When Alison and Dylan discover that Clara, the town’s oddball resident who’s involved with an infamous cult, was the person in possession of Lennon’s dead body all this time, they believe she might be the killer. To prove their hypothesis, the crew snoop around Clara’s property, as well as the abandoned homes of the people who died in a mass cult suicide 25 years ago. Unfortunately, Clara comes home early while they’re still there. Suspecting the invasion, Clara walks around the premises with a rifle as they scramble to escape discovery. Later, in the episode’s final moments, we see a bloodied machete as someone gasps for air in the distance. The camera cuts to black without disclosing the identity of the injured person.

Considering we see Alison and Margot reach home after the chase, it’s safe to say the victim isn’t one of them. However, we don’t see Dylan, Riley, or Clara afterward. Seeing as Clara is about to serve as a crucial variable in solving the central mystery (it was revealed in episode five that she was once married to Lennon and Alison’s dad), we can probably rule her out as the potential victim. Moreover, the wheezing seems to resemble a woman’s voice, which might mean Riley’s the one who’s been maimed.

Episode six of I Know What You Did Last Summer drops on Amazon Prime on Oct. 29, so we’ll probably get our answers then!

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