Chever Ashley, 23, pleaded guilty to second-degree murder on Tuesday morning in the slaying of Anthony Spencer, according to Det. Gary Giroux of the Toronto police.
His co-accused Samuel Paul, 24, pleaded guilty to robbery with a firearm, breaching a firearm prohibition order and violating bail conditions.
Ashley and Paul were charged with roughly a dozen offences each after Spencer was shot during the robbery of a Scarborough recording studio on Jan. 21, 2012. He died later in hospital.
Paul was originally charged with first-degree murder. Ashley later faced the same charge.
A key witness, LaPrincia Palmer, who was 19 at the time, turned herself into police in October 2012. She reportedly served 15 months in jail and was released on probation after pleading guilty to obstructing a police officer and attempting to obstruct justice.
Ashley and Paul will be sentenced on January 22.