She was a professional bassoonist living in the arconia, and was ultimately revealed to be the murderer of tim kono She is portrayed by amy ryan Only murders in the building season 1's suspect, jan, has a sinister intention behind killing tim kono Jan bellows (amy ryan) is a professional bassoonist and a resident of the arconia, the building where charles (steve martin), oliver (martin short), and mabel (selena gomez) live. Learn how she killed tim kono, her previous lover, and why she was in jail for three seasons. While this was likely meant to make her look like the killer's next target, audiences later learned that jan had been the killer all along.
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