
True crime fans, your time has come as the season three finale of Only Murders in the Building is here.
We headed back to the Arconia for more murder mystery with Selena Gomez, Steve Martin and Martin Short returning as Mabel, Charles and Oliver, and this time, they’re trying to find out who killed Ben Glenroy.
Was it Loretta? Dickie? Tobert? We need to know! So, without further ado, here is the ending of Only Murders in the Building season three explained.

Donna and Cliff killed Ben Glenroy
After Loretta (Meryl Streep) confesses to the murder of Ben Glenroy (Paul Rudd) to protect her son, Dickie (Jeremy Shamas), Mabel, Charles and Oliver start sleuthing to reveal who the real killer is.
After piecing together Ben’s whereabouts on opening night through confessional tapes from the Broadway cast, they conclude that Donna (Linda Emond) gave Ben a poisoned cookie after she discovered the bad review the play was going to get because of his performance.
Donna admits that she only meant for him to get sick so he couldn’t perform and also reveals that she has cancer. But, when she also says she pushed Ben down the lift, Mabel isn’t convinced.