The challenge ahead is to explain to our kids that on the one hand if c’v they need help, they ask for it, while simultaneously being suspicious of those who they ask for help.
Some of the basics should be, always ask for help in a well lit public place and ask publicly for help, so that more than one person is aware you need help. Ask those helping you to call your parents or guardian AND 911. Remain where you are and wait for your parents or the police, do NOT get into anyone elses car, no matter how nice he or she seems.
Just to echo an earlier sentiment. How is a male on male crime, perpetrated on someone from perhaps the most tzanua of neighborhoods an indication that other women from other neighborhoods must improve their own tnnius? If that is your take away from this tragedy, then act on it, others have made their own individual cheshbon hanefesh and have come to different conclusions. This doesn’t mean anyone is right or wrong. Perhaps everyone is right, perhaps everyone is wrong, although I don’t believe that an honest and sincere cheshbon hanefesh can be wrong. Incomplete, perhaps. As for the klal, I will leave it to my rav to determine where the kehilla as a whole is lacking and where it can improve.