A student waving what appeared to be a BB gun on a Central Dauphin School District elementary school bus was caught on tape by a classmate who filmed, and later reported, the incident.
"I thought about Connecticut and what happened there and what they did," said 9-year-old Caden.
The shooting at Sandy Hook elementary is a scary thought for an elementary school student, even more so for a parent.
"You think 'What about my kid?' What can I do to protect them and that's one of the reasons he has the cellphone," said Caden's mom Elisa Scharf.
But it's what her son did with the cellphone that has her feeling good.
"I'm proud. I'm very proud," she said.
Her son was on his bus ride to school when he saw a classmate shoot another young boy in the leg with what looked like a BB gun.
"He was jumping up and down because he shot him and I was on my phone taking the video and he didn't know," Caden described.
He kept quiet until he got to school. Once there he told his teacher and showed his principal the video.
Rutherford Elementary officials immediately sent out a notice to parents saying that a child did have a toy gun on the bus. The toy was turned over to Swatara Township police, and school officials say the student involved will be disciplined under the terms of the student code of conduct.
"We remind parents to assist school officials by speaking to their children about reporting any such incident to an adult immediately," the school wrote in a letter. "It was timely reports by students this morning that resulted in a quick resolution of the incident."
Scharf said she's proud of her son for knowing how to react.
"This is one of those situations where it doesn't matter what kind of gun it is right now, because everyone is going to be freaking out," she said.