THE BRONX - April is National Sexual Assault Awareness Month, and Lehman College students observed it by hosting a "Take Back the Night" event tonight.At the event, survivors of sexual abuse and domestic violence shared personal stories. The event also included a resource fair, step performance and candlelight vigil.Though most of the participating students were from Lehman, organizers say they want to include all city schools in future "Take Back the Night" events.