The hashtag #YesAllWomen began trending on social media over the weekend, after online videos created by suspected California killer Elliot Rodger were thrust into the public spotlight.

According to police, 22-year-old Rodger embarked on a killing spree in Santa Barbara, Calif. on Friday, killing six people and injuring 13 others, before fatally shooting himself.

In a video posted before the rampage, Rodger vowed revenge against women who rebuffed his advances, and for a life filled with “loneliness, rejection and unfulfilled desires.”

“Tomorrow is the day of retribution, the day in which I will have my revenge against humanity, against all of you,” Rodger says in video that has since been removed from YouTube.

In other YouTube videos, the titles of which included “Why do girls hate me so much?” and “Life is so unfair because girls don’t want me,” Rodger talks about the pain of being rejected by girls.

Twitter users reacted to the killings with the hashtag #YesAllWomen, with both men and women turning to social media to share their own thoughts on misogyny. 

The Hashtag is an inversion of the “Not All Men” meme, which argues that not all men are guilty of sexual abuse.