The Metropolitan Police Department announced the arrest of 18-year-old Naqwan Antonio Lucas, who was wanted in connection with two separate homicide investigations, including the death of congressional intern Eric Tarpinian-Jachym.

Tarpinian-Jachym, a 21-year-old University of Massachusetts Amherst student from Granby, was interning in the office of U.S. Rep. Ron Estes, R-Kansas, when he was shot and killed June 30 near 1200 7th St. NW in Washington, D.C.

In early September , two 17-year-olds, identified as Jalen Lucas and Kelvin Thomas Jr., were charged as adults in the case. Police identified Lucas on Thursday as the third and final suspect.

Lucas was identified as a suspect in a separate death investigation for 17-year-old Zoey Kelley, of Southeast D.C., Metropolitan Police said. Ke

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