I call B.S. on that. Virtually every shooter who is not a political jihadist has taken SSRIs and / or been under the care of a psychologist or psychiatrist within the previous 12 months of the shooting.People with mental illness account for 5% of mass shootings.
Keep that in mind when the GOP tells us this is a mental illness problem while also cutting spending for mental health care.
Type in your favorite mass shooter by name into Google, Put a comma then space and type in SSRSIs. Ninety percent of mass shooters will have been on SSRIs. AND NO, I AM NOT BLAMING SSRIs! Those drugs are merely a catalyst for people who can be identified by certain markers BEFORE they act.
The real solution is, as these younger people meet those markers, specially trained social workers should move in and get that individual the help they need. AFTER a mass shooting the people who knew the shooter will always be saying things to the effect that they aren't surprised, they expected it, etc. Instinctively most people already know the tell tale signs. You should act on them BEFORE a person becomes a threat to society. Civil Intervention, people, Civil Intervention. An ounce of prevention is worth a pound of cure.