Oct. 31 (UPI) -- A teenager has been arrested and charged in connection with two murders, including the June shooting death of a 21-year-old congressional intern, prosecutors and authorities said.

Naqwan Antonio Lucas, 18, of the District of Columbia, was arrested Wednesday in Montgomery Village, Md., by officers with the Metropolitan Police Department and the U.S. Marshals Service.

Lucas has been charged in a 16-count indictment for the June 30 murder of 21-year-old Eric Tarpinian-Jachym, who interned for Rep. Ron Estes, R-Kansas, and in a second indictment for the July 4 murder of 17-year-old Zoey Kelly.

He is the third person to be arrested and charged with the murder of Tarpinian-Jachym, a senior at the University of Massachusetts at Amherst.

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