HAVERHILL — After six months police have made an arrest in connection with the May 6 shooting death of a Haverhill man at the intersection of Grand Avenue and Emerson Street.

Essex District Attorney Jonathan Blodgett and Haverhill police Chief Alan DeNaro announced that Carlos Manel Rivera, 39, was arrested early Wednesday afternoon by Massachusetts State Police and Haverhill police.

Rivera is expected to be arraigned on Thursday in Haverhill District Court on the charge of murder.

On Sunday, May 6 at approximately 10:45 p.m., Haverhill police responded to multiple 911 calls for shots fired near Emerson Street and Grand Avenue, just north of downtown's Washington Square.

Responding officers found a male victim, Jeffrey Larkin, 40, lying in the street with a bullet wound in his chest. Larkin was transported to Holy Family Hospital in Haverhill, where he was pronounced dead a short time later.

Through the course of the investigation, police learned that Rivera and Larkin were acquainted with one another and that it was not a random shooting.

Also in connection with the shooting, authorities said Sky Stefanelli, 25, was indicted by a Essex County grand jury on Wednesday for accessory after the fact. A superior court arraignment date has not been scheduled.

Larkin's murder was the first murder in Haverhill in 2018, although there had been a number of shootings earlier in the year.

In January, a Haverhill man and a Methuen woman were charged in the nonfatal shooting of a man near 44 Portland St., in the city's Acre neighborhood.

In a March incident police say was gang-related, a Honda Civic chased a Ford Explorer down South Elm Street in Bradford while the passengers in the Honda fired shots into the Explorer. No one was injured, police said.

And in April, police were investigating reports of shots fired in the Acre when they spotted a Mazda leaving the area at high speed. During the pursuit, the occupants shot out of the window at police. The chase ended with a crash in Windham.

The city was rocked by violence once again when on May 17, Nike Colon, 20 of Haverhill, was in the passenger seat of a vehicle at the corner of Washington and Shepherd streets when he was shot by someone in a passing vehicle.

Colon was flown to a Boston hospital, where he was pronounced dead.

Police later charged Eddy Manuel Almonte, 27, of Haverhill in the shooting death of Colon.