A 28-year-old man was arrested Wednesday in connection with the deadly Borough Hall shooting of a 32-year-old Harlem man, police said.

William Groomes, 69, a former correction officer, allegedly shot Gilbert Drogheo in the torso about 6:40 p.m. on Tuesday.

Joscelyn Evering was charged with two counts of assault and menacing police said. The group had gotten into a confrontation on the mezzanine of the Borough Hall subway station on Tuesday evening, police said.

Evering was awaiting arraignment Wednesday evening and could not be reached for comment. It was not immediately clear what his role in the incident was.

Drogheo was pronounced dead after he was taken to Brooklyn Hospital.

The shooter remained on the scene and with police following the incident.