The shooting at Marjory Stoneman Douglas High School in Parkland, Florida did not create the school safety field, but it reshaped it in ways that continue to ripple through the work. The sheer scale of the tragedy, combined with the age and visibility of the students who survived it, produced a level of public attention and policy response that earlier incidents had not. Legislatures moved. Districts allocated funding. Schools that had deferred safety assessments and planning finally put them on the calendar.
For those of us who work in school safety, Parkland was also a period of serious professional reflection. It raised hard questions about warning signs, about the performance of systems that are supposed to catch those warning signs, and about the gap between what schools knew they should be doing and what they had actually implemented. Some of those questions have been answered with meaningful improvements. Others remain works in progress.
In the years since Parkland, behavioral threat assessment has moved from a specialized practice used by a small number of well-resourced districts to something that is now recommended or required by statute in many states. The basic premise, that identifying and supporting students who are showing warning signs is more effective than responding after a crisis has occurred, has gained wider acceptance among school administrators and policymakers.
Physical security improvements have also accelerated. Controlled access to school buildings, updated visitor management systems, and coordinated relationships between schools and local law enforcement are more common now than they were in 2018. These are not solutions on their own, but they represent real improvements in baseline preparedness at many schools that previously had neither the budget nor the political will to prioritize them.
Progress is real, but it is uneven. The resources that well-funded suburban districts can bring to safety planning are not available to most rural and urban schools, which often serve students with higher baseline levels of trauma and stress and have less capacity to build the systems that would help. This disparity in school safety preparedness is a persistent problem that policy change alone has not resolved.
Mental health support inside schools also remains inadequate at scale. The national ratio of students to school counselors is still far above what professional organizations recommend, and school psychologists and social workers are in short supply in most states. The behavioral threat assessment model works best when schools have the counseling capacity to actually support the students they identify. Without that capacity, the identification piece can outpace the ability to intervene effectively.
Reflection on events like Parkland serves a purpose beyond honoring those who were lost, though that matters too. It is a check on whether the urgency that these tragedies generate translates into lasting institutional change or fades as public attention moves on. The honest answer, four years later, is that both things have happened to some degree, and the work of building safer school communities requires ongoing effort rather than a one-time response.
Those of us in school safety return to these anniversaries not to dwell in the difficulty of what happened, but because the details of how these events unfold and how communities recover inform everything we do going forward. The lessons are hard-earned, and they deserve to be taken seriously in the planning and training and preparation work that happens in schools every day.