Feminism's rhetoric radicalizes people at such a point and it includes so many hate speeches towards boys and men in general that some feminists become misandrist terrorists. Feminism typically denied any responsibility about the incident by simply claiming that she's not a feminist despite Donna's multiple participations in feminist marches and activism.

Interesting fact: Some rapists got more prison time than Donna and had been ostracized for life, contrary to Hylton, which contradicts equality. A few months ago I saw in the news in tv that a man shot a female cop with a gun (without lots of days of appaling torture) and got 32 years.

It's no secret that we handle female abusers with kid gloves, see Amber Heard, compared to Johnny Depp, which contradicts Egalitarianism. Egalitarianism is supposed to be equality that goes both ways, thus equal sanctions for both sexes. I sympathize with Egalitarian ideas and values. Equality is a two-way road and no dead end.

Sources:

https://dailycaller.com/2017/01/26/womens-march-featured-speaker-who-kidnapped-raped-and-tortured-a-man/

https://dailycaller.com/2017/04/27/college-speaker-whines-about-prison-but-fails-to-mention-that-she-tortured-and-killed-a-man/

https://www.reddit.com/r/AskFeminists/comments/5pqwow/why_are_people_like_donna_hylton_invited_to_speak/

https://en.m.wikipedia.org/wiki/Donna_Hylton

https://spectator.org/the-women-movements-embrace-of-psychopath-donna-hylton/