Baltimore County police charged a 17-year-old Perry Hall High School student as an adult Friday after he brought a loaded handgun to school the day before.
Police said Christopher James Engles brought his grandfather's gun to school Thursday. A student reported it to a school resource officer, who confiscated the gun and arrested Engles without incident.
Police said Engles did not point the gun at anyone and do not believe he intended to harm anyone.
Engles has been charged with possession of a firearm by a minor, possession of a dangerous weapon on school property, carrying or concealing a dangerous weapon, and wearing or carrying a handgun.
He did not have an attorney listed in online court records.
According to charging documents, a student saw Engles showing the gun to a group of students and reported it to a school resource officer and Assistant Principal Mark Baikauskas, giving them Engles' description.
Baikauskas and the officer were familiar with Engles and began searching for him, the documents said. When they did not find him in class, other school staff members joined the search until Engles was found.
Engles told police he took the gun from his grandfather's safe about a week ago, the documents said.
Engles, of the first block of Bellhurst Way in Nottingham, was being held Friday at the Baltimore County Detention Center.
Baltimore County public schools spokesman Mychael Dickerson said the school operated normally Friday but that county police planned to increase patrols near the school later in the day.
He said Engles also faces disciplinary action once he returns to school.
Perry Hall High was the scene of a shooting in 2012. Robert Wayne Gladden Jr., a sophomore, brought his father's shotgun to school and assembled it in a boys' bathroom before opening fire in the cafeteria, critically injuring a student. The student survived. Gladden received a 35-year sentence in 2013.