Cherish and polish that disgust as much as you please! But it does no good to you nor anyone else.
The girl, the mother, the daughter, the co-worker is dead. She died at the hands of a predator who should better have been avoided. What were the circumstances that marked her as prey in his eyes?
The story as reported so far only tells so much. We know she was beautiful and had an endearing smile. It appears she had a compassion for the oddball of a man.
Single mothers are easy prey to many cads and scoundrels, a smile, a beauty and a kind heart are not adequate protections.
It’s curious that your worldview doesn’t seem to include the possibility that a predator might target someone that doesn’t deserve to die.
Is it just some women you have this problem with... Or is it all women?