frieder to saturday's evof salt. and in that is prior to saturday's assault and haaziq madyun spoke with the contra costa county police and army. >> actively trying to track down the saturday and sexual assault that the park regency and walnut creek. that is what happens steve ward of the contra costa sheriff's department has been doing since the crime occurred. >> we've aggressively been following up on any solid lead. and also, keeping the residents of a where. >> a private security has been stepped up of the park regency. guards check the identity of everybody onto the property including people in the in taxicabs, and even be sought delivery. creek, haaziq madyun >> and me mall, we spoke to residents who are afraid for their safety. the one to break for the releases and move. >> i am afraid of taking the elevator, i am afraid of l tracking me and the stair well come on or escalator. security will give me an escort to my part company to call them, wait for them. and who knows, that to be up to 10 minutes. and right