I don’t use twitter so I have no idea what she said. Taking this at face value, I wouldn’t attack the man for his previous tweets. I gotta believe he feels absolutely crushed by what happened. I wouldn’t want to pour salt on those wounds.
That said, he’s an effing idiot. Someone hands you a weapon - check it! Empty all the chambers. Never point it at anyone. All guns are loaded all the time. Life is not a movie.
Why?
Because you would?
Evil exists.
And such people actually do not care about killing people.
He called for innocents to be killed brutally in the past.
Such people are capable of killing someone and walking away humming a merry tune.