Truly, all of society's ills and criminal actions are due to mental health by which all human interaction result.  Society's quantifiable assessment of itself evidences the mental health of its population, just as each day marks the accumulation of your lifetime of acts since birth that reflects your exact mental health.  Driving drunk or rather never had interest in alcoholic beverages?  Career 1st and family 2nd?  What does integrity have to do with gain, winning, money, or greater good?  Molested as a child? Bullied, or worse, ignored in school?  Etc.  So, like religion, money, alcoholic beverages, drugs, fast cars, soft porn, slasher movies, action heroes, tobacco, and fast foods, what do guns have to do with the kinds of Texas mass shootings?