rebecca o'brien teaches classes call defense-ability to prevent sexual assault. >> we use a video in our class that shows three times between the time a predator approaches a woman and puts her down and knocks her down and dragged her off. >> victims should focus on that. >> we have no control of where they will take you or what they will do to you next and after they take you to a sec you'ded environment or area and so the advice is do whatever it takes to survive. >> and the advice from rebecca o'brien is too yell. >> use your voice. yell as loud as you can. call 911. i need help. somebody help me. and just keep yelling. don't go silently. >> san jose police are concerned that russell is staking out new areas where his assault is anywhere in the bay area. >> he will do whatever it takes to evade police and capture and being seen by the community. and he knows that he is wanted. he knows he is wanted by the police. >> he believed to be driving a white nissan rogue with no license plates and he may have switched cars by now and he is a transient with no address in san jose and he is

>>reporter: advice from rebecca o'brien is to yell. >> use your voice. yell. as loud as you can.i need help. somebody help me. and just keep yelling. don't go silently. >>reporter: san jose police are concerned that russell is staking out new area for the assaults anywhere in the bay area. >> he will do whatever it takes to evade police and capture and to evade being seen by the community and he knows that he's wanted. he knows he's wanted by the police. >>reporter: russell is driving a rogue with no license plate. he may have switched cars by now say police. he's a transient with no fixed address in san jose. he's a registered sex offender. in san jose, david louie abc 7 news. in san jose, davy;+÷r."g=agtÑ7 getting the paddle wheeler back onóp top of the water. a little silent more than a f this weather anchor spencer christian here with the a big warm-up comingzqz our way. our way. spectacular failure test test. the chase freedom unlimited card earns you unlimited 1.5% cash back on everything you buy. that's 1.5% cash back on whatever these billboards are selling. what are they