The inmate accused of killing B.C. serial killer Robert Pickton in a Quebec prison has pleaded guilty to the charge of first-degree murder.

Martin Charest entered the plea on Thursday (Sept. 25), multiple media outlets reported. He reportedly told the court he killed Pickton for the victims.

Charest was charged with first-degree murder in July, according to a warrant for his arrest dated July 3, 2025.

He was first named as the accused in Pickton's death in a 2025 independent observer's report into the death of Pickton. The report, which is partially redacted, said Charest "violently assaulted" Pickton in the common room at the maximum-security Port-Cartier Institution in Quebec, "thrusting a broken broomstick into his face."

Pickton, 74, died in hospital May 31, 2024, days after he was

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