Police union officials and the wife of an officer killed four decades ago are leading the charge against parole for the convicted killers.
Anthony Bottom and Herman Bell are in prison for the 1971 killing of Officers Waverly Jones and Joseph Piagentini in Harlem.
PBA officials say that Bell and Bottom have each recently admitted to participating in the crime after years of proclaiming their innocence.
Bell is up for a parole hearing in February, and Bottom is up for a parole hearing this June.
"Yes. They're guilty then, and they're guilty now, and no cop killer should ever walk the face of this earth," said PBA President Patrick Lynch.
"It took him 40 years for him to finally admit to such a heinous act that his sentence should start again upon his admission of guilt and continue until the end of time," said Diane Piagentini, the wife of one of the victims.
A third man convicted of the crime died in prison.