A fourth person has been charged in connection with an armed robbery that left a 21-year-old man dead.
Eighteen-year-old Elijah Charles was arraigned Tuesday in East Boston Municipal Court on charges of armed robbery and armed assault.
Prosecutors say Charles was involved in a Dec. 10 drug robbery in Boston that led to the shooting death of Duncan Ketter.
Authorities say a 16-year-old had arranged to buy marijuana from a woman who was joined by Ketter. After all three got into a vehicle, an armed man emerged from the rear and demanded the pot.
Ketter was shot and allegedly thrown from the vehicle with the woman.
Authorities haven't specified what role Charles allegedly played in the robbery. A message was left with his attorney. Charles returns to court Jan. 19.
