Baltimore County police charged a teenager as an adult in connection with a loaded gun found inside Chesapeake High School.According to sources with knowledge of the incident, school officials spotted several things out of the ordinary the moment the student arrived for class. The I-Team has learned the gun was discovered following a head's up observation by school officials. The student wore a red backpack, which he never has brought to school. He left the backpack in a classroom in which students were soon excused for lunch.The school principal reported she could feel the outline of a handgun inside the bag. She called a resource officer who secured the weapon, which was a 9-mm ghost gun, along with 13 grams of suspected marijuana. Ghost guns are types of weapons that are hard to trace because they lack a serial number.Police said the student later surrendered to authorities and faces illegal handgun and drug charges.In a letter, the school's principal encouraged parents to remind their children about the importance of speaking up if they see something suspicious at school. Some parents said they are frustrated and disappointed about the lack of information school officials are providing."We did receive a phone call and an email. They said the school was presumed safe, but that was after the kids were already gone, you know? It's kind of worrisome," said Stephanie Sterquel, a parent."They had it there for a reason. They didn't bring it unless they planned on using it," said Doris Shell, a grandmother.Students who spoke with 11 News said resource officers make them feel safe."Our officers at school, I trust them a lot. They do their jobs every day, break up fights and whatnot. I feel safe at school, to be honest. I wasn't personally worried. I know what to do if there was an active shooting," said Nathan Gover, student.Even though the juvenile defendant is charged as an adult, a new state law prohibits authorities from releasing their identity or photo until a judge decides whether the case is moved to juvenile court."The purpose of the bill is that we are in a time where these images that are put on the internet go viral. They are not able to be retracted. Since we know that more than 85% of children that are charged as adults automatically have their cases adjudicated in juvenile court, they are then stained for life," said Baltimore City Sen. Jill Carter, D-District 41.Police are still looking into a motive.Police said they do not believe other students were involved.