All the killers in Only Murders in the Building so far

Only Murders in the Building has been a great success for Hulu! In case you can't wait, here's a rundown of each season's killer and why they did it!

Only Murders In The Building -- "Who Is Tim Kono?" - Episode 102 -- The group begins researching the victim. Meanwhile, Mabel’s secretive past starts to be unraveled. Mabel (Selena Gomez), Oliver (Martin Short), and Charles (Steve Martin), shown. (Photo by: Craig Blankenhorn/Hulu)
Only Murders In The Building -- "Who Is Tim Kono?" - Episode 102 -- The group begins researching the victim. Meanwhile, Mabel’s secretive past starts to be unraveled. Mabel (Selena Gomez), Oliver (Martin Short), and Charles (Steve Martin), shown. (Photo by: Craig Blankenhorn/Hulu) /
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Only Murders in the Building has been a major success for Hulu. But just who was the killer in each year, and why did they do it? Find out here!

Caution: This article contains obvious SPOILERS for Only Murders in the Building

For those who have missed it, Only Murders in the Building focuses on Broadway producer Oliver Putnam (Martin Short), has-been actor Charles-Haden Savage (Steve Martin), and artist Mabel Mora (Selena Gomez), who live in the expansive Arconia apartment building in New York. Despite their various differences, the trio join together to investigate a murder and do a podcast about it.

Each season is filled with twists and turns alongside some wild comedy. Some will want to jump into it quickly and enjoy the turns as they come, but others may be the type who jump to the end of a book first. So here’s a quick rundown of each season of Only Murders in the Building and who did it. 

Only Murders In The Building
Only Murders In The Building -- Episode 101 -- From the minds of Steve Martin, Dan Fogelman and John Hoffman comes a comedic murder-mystery series for the ages. “Only Murders In The Building” follows three strangers (Steve Martin, Martin Short and Selena Gomez) who share an obsession with true crime and suddenly find themselves wrapped up in one. When a grisly death occurs inside their exclusive Upper West Side apartment building, the trio suspects murder and employs their precise knowledge of /

Only Murders in the Building Season 1: Who killed Tim Kono?

The first season focused on the murder of Tim Kono, a resident of the Arconia whose death was initially ruled a suicide. The trio start their investigation with Mabel pushed as she and Tim had been friends. 

At first, the trio thought Teddy and Theo Dimas were guilty of covering up Tim stumbling onto their own criminal schemes. There was also how Tim's girlfriend Zoe had died in mysterious circumstances. It turned out she'd been accidentally pushed off the roof by Theo during a fight.

Meanwhile, Charles was getting close to musician Jan (Amy Ryan). However, when Jan drugged him and tried to kill him, the trio found out she was the killer.

Jan and Tim had been romantically involved, but Jan mistakenly believed Tim was having an affair after finding a ring belonging to Zoe. She thus killed him and went to extremes to try and blow up the entire building before the gang stopped her. 

That seemed the end of it, only for the season to end with Charles and Oliver finding Mabel standing over the body of building manager Bunny (Jayne Houdyshell), and all three were arrested.