Remember when we were at school and we had to watch all those awful videos of kids getting hurt on train lines, or on the road, or by taking drugs ("go on....try it...."), and all the stranger danger stuff, and all the others things designed to make us behave safely? Well young teens today should be made to watch news reports about cases like this. All too often young girls go off with men who should know better, though luckily most of them return home unscathed.
My kids are too young to be out without an adult at the mo, but you can bet I will be talking to them in a few years about cases like this. The internet scares the crap out of me when I think about my kids becoming teenagers, and no doubt being more tech savvy than me (not hard).