Kathy Saylor talks to MLive's John Tunison about her 16-year-old grandson who detonated an explosive at Newaygo High School on Monday, March 8, 2021. The boy's father, David Robert Daniel Saylor, 33, was charged with manufacturing explosive devices and contributing to the delinquency of a minor by manufacturing those devices with his son. (Cory Morse | MLive.com)
