Mass murderers, in some cases identifying as incels, have described being motivated by a perception of entitlement to sex or companionship with women, a desire to seek vengeance for the perception of being rejected by women, and a drive to put women "in their place". For example, in the 2014 Isla Vista attack, the perpetrator set out to "punish all females for the crime of depriving me of sex." Incel ideology has been a contributing factor to 90 fatalities and injuries since this attack, as of early 2020. Feminist writer Jessica Valenti argues that such incels should be viewed as misogynist terrorists and warns that they are being radicalized online.