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A suspect has been charged in the execution-style murder of former Harlem drug kingpin Alberto “Alpo” Martinez last year.

Shakeem Parker, 27, was already in custody on Riker’s Island on an unrelated gun charge when detectives received a tip that he killed Martinez.

“Detectives gathered information that he was the shooter,” a police spokesman said.
RELATED: Former Harlem drug kingpin, Alpo, killed in drive-by shooting
Martinez, 55, was shot and killed as he left a nightclub in a red Dodge Ram pickup truck at 3:20 a.m. on Halloween night.

Martinez was shot six times in his left arm, once in his chest, and a bullet grazed his chin, sources told The NY Daily News.

Alpo’s ID was in the name he used in the witness protection program — Abraham Rodriguez.

Photos show his bullet-riddled truck at the corner of Frederick Douglass Boulevard at West 151st Street — directly across from a Harlem police precinct.

Parker was charged with murder and criminal possession of a weapon, according to The News.

Alpo Martinez was placed in the witness protection program following his release from Supermax prison in Colorado in 2015.

He received his get-out-of-prison card after he snitched on rival drug bosses to avoid a life sentence in prison.

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Authorities say Martinez lived in Lewiston, Maine, but he often visited his East Harlem stomping grounds where he was born and raised.

Martinez was portrayed by the rapper Cam’ron in the 2002 film, “Paid in Full.”