"That's ridiculous. That's scary," parent Doreen Boodram said.
Brentwood parents are clearly taken aback by the news that a boy came to school with a loaded handgun in his backpack.
"How could parents have dangerous weapons lying around the house?" Boodram wondered.
Investigators say when the boy removed the gun from his backpack and put it in his desk, he motioned to a friend to take a look.
That's when his quick-thinking teacher came over and took the gun away, averting what could have been a disaster in her third grade classroom.
"Even accidentally the gun could have fired and somebody could have been killed or seriously injured as a result," Detective Lieutenant Matt Sullivan said.
The boy was arrested and charged as a juvenile with criminal possession of a weapon. The parents we talked to think police should be focusing on his parents.
"The parents should be more careful with guns. I hope they are in jail," Adriana Suarez said.
The child spent some time at the police precinct and in Suffolk County family court before going home with his mother.
Police are still investigating whether he brought the gun to school because he planned to use it or just to show off. It's still not clear where he got the weapon.