A teenager has been charged in a shooting and stabbing that killed two people and left two others injured in Fairfax County, Virginia, on Monday afternoon.

Police say what happened was drug-related.

Fairfax County police said that a 17-year-old was charged Tuesday with robbery resulting in the shooting death of Jonas Skinner, 20, of Ashburn, and the stabbing death of Braden Deahl, 18, of Arlington.

Skinner was found in the laundry of an apartment building on the 2200 block of Pimmit Run Lane on Monday. Deahl was found in the parking lot, along with two other people who have also been stabbed. Police say Skinner was declared dead at the scene, while Deahl was pronounced dead at the hospital.

Washington-Liberty High School Principal Tony Hall said in a tweet that the school is deeply saddened by the passing of student Braden Deahl.

First reported by ARLnow, Deahl was a soccer player committed to play at St. Mary’s College of Maryland.

The two other victims had injuries that were not life-threating — one, a juvenile, is still in the hospital, a Fairfax County police news release said.

Police said that officers found a “significant amount” of marijuana, and they believe that it is connected to the killings. They said all involved know each other and what happened was not random.

Police said they anticipate more announcements in the case, and they are asking anyone with information to call them at 703-246-7800.