A third man has been arrested in connection with the shooting death of a 21-year-old Massachusetts man inside a Harvard University dormitory in May.

Prosecutors said Friday that 23-year-old Jason Aquino was arrested by New York City police at his home in Manhattan on Thursday. A warrant from Massachusetts charges Aquino with first-degree murder.

Jabrai Jordan Copney and Blayn Jiggetts, both 19, have been indicted in connection with the fatal shooting of Justin Cosby on May 18.

Prosecutors say the men arranged to meet Cosby to get marijuana and rob him. Cosby was shot inside the dorm's common area and died the next day.

None of the men were Harvard students.

Aquino is scheduled to appear Friday in Manhattan Criminal Court.