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Warning: This story contains spoilers for season five of Only Murders in the Building. <\/em><\/p>\n Only Murders in the Building<\/em><\/a> season 5 just wrapped, and in true Arconia fashion, the finale was packed with twists, betrayals, and one killer reveal that fans didn\u2019t see coming.<\/p>\n After a season full of red herrings and mobster mayhem, the Hulu hit finally unmasked Lester the Doorman\u2019s murderer \u2014 and it wasn\u2019t who most viewers suspected. The Oct. 27 finale revealed that Mayor Beau Tillman (Keegan-Michael Key<\/strong>) was the one who killed Lester (Teddy Coluca<\/strong>), setting off a dramatic chain of events that pulled Mabel (Selena Gomez<\/strong><\/a>), Oliver (Martin Short<\/strong><\/a>), and Charles (Steve Martin<\/strong>) right back into danger.<\/p>\n Here\u2019s how it all went down: Beau\u2019s affair with Sofia (T\u00e9a Leoni<\/strong>), the wife of mobster Nicky (Bobby Cannavale<\/strong>), sparked the chaos. After discovering the betrayal, Nicky cut off his own finger as revenge \u2014 yes, that mysterious finger that turned up in Oliver\u2019s apartment last season. When Lester tried to protect the Arconia by killing Nicky before the mob could take over, he made himself a target. Beau wanted to cover his tracks, retrieve his finger, and keep his shady casino deal with Camila White (Ren\u00e9e Zellweger<\/strong>), Sebastian \u201cBash\u201d Steed (Christoph Waltz<\/strong>), and Jay Pflug (Logan Lerman<\/strong>) under wraps.<\/p>\n But in a shocking moment, Beau shoved Lester into the Arconia fountain, causing him to hit his head and die instantly. The heartbreaking twist? Lester actually tried to text Mabel, Oliver, and Charles the name of his killer \u2014 but his phone\u2019s autocorrect ruined the message.<\/p>\n When the trio finally pieced the mystery together, Beau panicked and locked them in a hidden room ahead of the Arconia\u2019s planned demolition. Luckily, they escaped just in time to expose the truth, leading to Beau\u2019s arrest \u2014 and, for now, saving their beloved building.<\/p>\n Of course, the finale couldn\u2019t end without setting up another murder. In a full-circle moment, Mabel, Oliver, and Charles sat down to revisit Cinda Canning\u2019s (Tina Fey<\/strong>) old podcast from season 1, which detailed a red-haired British woman accused of killing a royal heir. But in a jaw-dropping twist, it turned out Cinda was actually talking about herself.<\/p>\n The final moments showed Cinda stumbling through the streets with bloodied hands before being found dead \u2014 right outside the Arconia. And just like that, another case lands in the laps of Mabel, Oliver, and Charles.<\/p>\n<\/p><\/div>\n