Columbine, Newtown, Parkland, Oxford, and now Uvalde, Texas have been the sites of school shootings over the last 23 years in America, in which dozens of children and multiple teachers and staff members have been killed. After each one, we talk about changes that need to be made -- changes in laws, changes in mental health checks and support, changes in how to spot and handle warning signs --  but the tragedies continue.
 
So, who are these killers? And do they have characteristics in common?
 

“There is no profile, and we don’t have the psychological tools to identify who’s going to be a shooter,” Dr. Phil says. “But there are some commonalities. There are some indicators.”
 
Hear what Dr. Phil says are some of the common characteristics of school shooters in the video above, including what he calls one troubling element.
 
On Wednesday’s episode, "Texas Shooting: Enough is Enough," Dr. Phil dedicates his platform to discussing how to stop these mass shootings from happening over and over. Learn how you may be able to identify a possible shooter and how to talk to your kids. Plus, hear from a child who survived the Robb Elementary School shooting in Uvalde, Texas. Check local listings to see where you can watch.

WATCH: Uvalde Shooter Reportedly Publicized His Plans Before Murdering 21 At Elementary School

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