In his manifesto, he said:
"All of those beautiful girls I've desired so much in my life, but can never have because they despise and loathe me, I will destroy."
Social media users are responding en masse to the crime with the hashtag #YesAllWomen, sharing examples of misogyny, objectification and violence from their own lives.
Ludwig said just talking about women's rights and abuse in a public space is helpful and moves the conversation forward.
Bassett thinks parents need to revise they way they educate their children about gender.
"We need to change the culture," she said. "Woman are always talking to their daughters about how to avoid getting raped and not so often talking to their sons about how not to rape."
Here's a sample of the conversation happening around #YesAllWomen:
This tweet from berry @detricotage on May 25 at 1pm, has been shared over 3,800 times.
Twitter user @Lollypodxo shared a quote from poet and activist Margaret Atwood.
And @PatKinnane said "no man is entitled to any women or her body without her consent."
Join in the discussion.