https://www.realclearpolitics.com/2018/02/27/of_27_deadliest_mass_shooters_26_of_them_were_fatherless_435596.html?fbclid=IwAR0JJkL6FT5SLkRSMs36d_z1iQ6VqziuhqJe1e06RYKjzneT690PjE0ibbE