Click through to see how students create a healthier community.
(CNN) -- Lauren Astley knew her ex-boyfriend was having a hard time getting over their breakup.
Her body was dumped in a nature preserve he knew from science class.
Nate had shown signs of jealousy in the past, but nobody suspected he would hurt Lauren.
Through analysis of focus group data, this study revealed that teens are reluctant to employ bystander behaviors in any capacity.
While there is promising research on the individual-level factors that influence students' willingness to intervene, there has been limited investigation on how teens' school environments encourage proactive responses.
During his murder trial, his lawyer said he snapped mentally when he killed her.
Prosecutors said it was a case of extreme dating violence, that he wasn't psychotic -- just angry, hurt and humiliated by the breakup.
Finding a new normal Questions about what could've been done differently arose recently in Steubenville, Ohio, in Torrington, Connecticut, and in other communities where teen dating violence and sexual assault drew national attention.
Blame bounces around the victim's clothes, the amount she drank, whether she "put herself in that situation," and to the perpetrators, parents and society for fostering a culture in which violence among teens -- sexual and otherwise -- makes regular headlines.