Manuel Oliver’s solo show “Guac,” about the death of his son, delivers humorous memories and heartfelt messages.

The tracker focuses on the segment of planned school shootings where an active shooter, with intent to harm, injures or kills at least one student or faculty member during school or at a school event.

Andrew Pollack, the Parkland father who turned the tragic loss of his daughter Meadow at Marjory Stoneman Douglas High School ...