Five students were charged, but police say they are still looking for the weapon.
The investigation began on Monday when an administrator told the school resource officer that a student had been robbed earlier in the day, and that the victim had brought a gun to school.
The officer tracked down the student and discovered a loaded handgun magazine in his backpack.
The student told the officer that he’d brought a gun to school, and that four other students had robbed him the bathroom, stealing the weapon and cash.
Police did not say why the student brought a loaded gun to school.
In 2018, an 18-year-old Clarksburg student was arrested for bringing a gun and a knife to school. Police began investigating Alwin Chen after a number of schools in Montgomery County received threats.
Three students were charged as juveniles, and two were charged as adults.
- Tyson Brown, age 16, of Clarksburg – charged as an adult with possession of a handgun, robbery, and conspiracy to commit robbery
- Justin Ferguson, age 18, of Gaithersburg, charged with robbery and conspiracy to commit robbery
- Juvenile male, age 15, charged as a juvenile with possession of a handgun and possession of a deadly weapon on school grounds
- Juvenile male, age 15, charged as a juvenile with robbery and conspiracy to commit robbery
- Juvenile male, age 16, charged as a juvenile with robbery and conspiracy to commit robbery
The two students who were charged as adults were taken to Central Processing Unit, while the others were released to their parents or guardians.
If you have any information that might help police, call (240) 773-5770.