Police responded to a report of a stabbing in the city's Jamaica Plain neighborhood after two victims entered the department's District 13 headquarters. 

The victims were taken to separate hospitals. The 21-year-old later died from her injuries. The 17-year-old is expected to survive. 

HOW ODD! LARGE PET EMU RUNS LOOSE THROUGH THE STREETS SOUTH OF BOSTON, MASSACHUSETTS

Each victim suffered multiple stab wounds, an ongoing investigation revealed.

"Anytime somebody that young does something at 16 it really is a sad day for the whole community," a neighborhood resident told Boston 25. "I just wish that we could get more resources in the community to help people process their emotions in more constructive ways."

The girl will be charged in regular, not juvenile session, due to state law for arraignments for 14 to 17 year olds charged with murder.