This story was updated to remove information that was inadvertently repeated.

The day after a teenager opened fire at a high school in Parkland, Florida, in February 2018, helicopters rushed to another high school near the campus where 17 people were killed.

The nearby Atlantic Technical High School was on lockdown while authorities investigated a copycat threat. Young Eden Frallicciardi and his dad were on the campus to pick up his older brother when a cop pulled the dad and son into a janitor’s closet to hide.