Overview

During the early morning hours of October 31, 2021, Alberto “Alpo” Martinez was shot while driving a pickup truck in Harlem, New York City. Martinez, 55, had become a prominent figure in the New York and Washington, D.C. drug trade during the 1980s and early 1990s before becoming a federal cooperating witness.

Police responding shortly before 3:30 a.m. found Martinez wounded inside a dark-red Dodge Ram near Frederick Douglass Boulevard and West 147th Street. He was transported to NYC Health + Hospitals/Harlem, where he was pronounced dead.

The Shooting

According to police accounts reported after the homicide, Martinez was struck by five gunshots fired through the vehicle window. Reports identified wounds to his chest and other parts of his upper body.

Despite being wounded, Martinez continued driving for several blocks before the Dodge Ram collided with parked vehicles. Police and emergency medical personnel subsequently responded to the crash scene.

The homicide occurred on Halloween morning, approximately six years after Martinez had been released from federal custody.

Return to Harlem

Martinez had spent several years living in Lewiston, Maine, under the name Abraham Rodriguez following his release from federal prison in 2015. Reporting from Maine later documented that he had lived relatively quietly there while associated with the federal witness-protection system.

By the period immediately preceding his death, however, Martinez had increasingly returned to New York and was again appearing publicly in Harlem. His presence generated attention because of his earlier role in the Harlem drug trade and his subsequent cooperation with federal prosecutors.

Initial Investigation

The killing immediately generated speculation that Martinez had been targeted because of his earlier cooperation with federal authorities or because of conflicts dating to his years in organized narcotics trafficking. Those theories should be distinguished from what investigators later alleged.

Police eventually focused their investigation on Harlem resident Shakeem Parker. In February 2022, the New York Police Department announced that Parker, then 27, had been charged with murder and criminal possession of a weapon in connection with Martinez’s death. Parker was already in custody on an unrelated matter when the new charges were filed.

Prosecution Theory of Motive

Police and subsequent reporting attributed a different motive to the shooting than the widely discussed theory of retaliation for Martinez’s cooperation with law enforcement. Investigators alleged that Parker had developed a grievance against Martinez concerning Martinez’s manner of riding motorcycles in the neighborhood.

The alleged motorcycle dispute became the prosecution’s explanation for the homicide. Because Parker denied the charge and was later acquitted, this motive should be treated as a prosecution theory rather than an established historical fact.

Trial and Acquittal

Parker remained jailed while the murder case proceeded toward trial. Jury proceedings began in New York City in June 2024.

On July 9, 2024, Parker was acquitted of the charges arising from Martinez’s killing and was released from custody. The acquittal is important to the historical record because Parker cannot properly be described as Martinez’s convicted killer.

The evidentiary record therefore supports stating that police arrested and prosecutors tried Parker for the homicide, while separately noting that the prosecution failed to obtain a conviction.

Unresolved Questions

The acquittal leaves important questions surrounding Martinez’s death unresolved. Public speculation has included retaliation for his cooperation with federal authorities, disputes arising from his renewed presence in Harlem, narcotics activity, personal conflicts, and the motorcycle-related dispute advanced by investigators.

These explanations should not be merged into a single narrative. The documented facts establish that Martinez was intentionally shot and killed in Harlem; they do not establish, following Parker’s acquittal, a judicially proven identity or motive for the shooter.

Historical and Investigative Significance

The 2021 shooting represents the final event in the life of a figure whose criminal history connected several major geographic networks represented in the Crime Encyclopedia. Martinez had operated in Harlem before expanding his narcotics activities into Washington, D.C., Northern Virginia, and surrounding areas.

The event should therefore cross-link with the Alberto “Alpo” Martinez biography, the Rich Porter network, the Washington drug investigations, federal cooperation proceedings, and Martinez’s earlier 1990 shooting in Washington, D.C.

The 1990 and 2021 shootings should remain separate events. The 1990 Washington shooting is significant because of Martinez’s subsequent hospital encounter with narcotics officer Angelo Parisi. The October 31, 2021 Harlem shooting was fatal and resulted in a separate homicide investigation and prosecution more than three decades later.

Evidence Status

A/B for the core event and court outcome; B for attributed investigative theories. The date, location, shooting, hospitalization, death, Parker’s arrest, prosecution, and 2024 acquittal are supported by contemporary or court-based reporting. Claims concerning motive must remain attributed to police or prosecutors. Parker’s arrest and trial should not be treated as proof that he killed Martinez because the case ended in acquittal.

Selected Sources