Should Craig's List be Regulated?

I don't know if you've heard, but there's an ongoing case about some guy who killed a 'masseuse' from craig's list and possibly tied up/robbed a second one. Check out the link above for the story. Sounds like the perpetrator would get a masseuse/professional off of craigs list then tie them up and rob them. One case went seriously wrong...what do you guys think about the list letting people sell themselves, i mean their services like that??