On the one-year anniversary of the mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida, and the six-month anniversaries of the mass shootings at the Tree of Life Synagogue in Pittsburgh, Pennsylvania, and the Borderline Bar in Thousand Oaks, California, the same questions continue to be asked. What was the state of the shooter’s mind at the time? What could have brought them to do something like this? And, always at the center of it, “What could we have done?”