And which of your stereotypes fits the deceased parents of the Thurston High School murderer?  And which of your stereotypes fits the deceased mother of the Sandy Hook Elementary School murderer?  And where was the psychologist who could have prevented the Roseburg murderers' rampage or the Aurora Colorado theater murderer?  I am much more concerned about the  the psychiatric and psychological industry's complicity in the mass shooting cases than I am the 'negligence' of firearm owning parents.  Your 'teenager gun deaths' is a red herring when you factor in the thousands of those which are Black and Hispanic gang-related drug dealing deaths, not mislaid parental firearms.