Are you actually asking about an AXE-murderer? There is no such thing as an "ex-murderer." Once you have been found guilty of murdering someone you can ALWAYS be a referred to as a "murderer."
The climax of "The Mysterious Affair at Styles" by Agatha Christie occurs when Hercule Poirot gathers all the suspects together and reveals the true identity of the murderer, leading to a dramatic confrontation and the resolution of the mystery.
A murderer
No, she was not a murderer.
The Murderer was created in 1953.
He was a mass-murderer.
difference between as on and as at
The murderer was from the village of Mbaino.
Murderer is mördare in Swedish.
The feminine form of "murderer" is "murderess."
No, Edge is not a murderer!
beat the murderer up
mrs hilary was the murderer