The Same Kid

Nearly all of the young men who have mass murder have essentially been the same kid. They come from a broken home with the father not present nor really caring. The mother is of often incapable, not caring and otherwise neglectful. The child receives no parental love and turns elsewhere. He is also bullied by peers at school and elsewhere. The mother will often harshly criticized him for school failures and gets him drugged to better help him cope. All the madness, dysfunction and pain have caused him to go into isolation where he becomes absorbed in violent video games for hours at a time and likely pornography as well. He loses touch with reality that causes him to go on a killing rampage in hopes of getting recognition, because in a warped way that would be love that he never received. None of this excuses murder, but there reasons that such people exist.
It's the same with all the murders in the inner cities of major cities. Democrat welfare policies have paid women more to have babies if the father didn't stick around. This has resulted in the out-of-wedlock birthrate in the African American to surge to over 70 percent. SO many growing up without fathers and mothers who are incapable and uncaring. Especially the boys turn to gangs to get their familial needs met. Thus, the high rates of murders and overall crime in the inner city.
Every child comes out of the womb precious and innocent. It's their dysfunctional environment that turns them into mass murderers.
Hitler came out of the womb and innocent precious child. His father severely beat him and otherwise abused him. He stuffed down all of the pain and emotions that came about from the treatment of his father and released it onto the world decades later. Alice Miller has written books that talk about the abuse of Hitler and how that turned him into a monster. The Drama of the Gifted Child is one of Miller's most famous books.
Again, all children are born innocent, it's their environment that turns them into monsters.