They are this one guy who keep sending me Personal Messages telling me he know allot about me, like what games I play or played plus other stuff like where I live, that kind of stuff. I believe this guy is an Internet bully who hides behind the keyboard. What laws do we have against a bully on the Internet?
It depends on the site,if it's on twitter than contact twitter helpline and report abuse.If it's a social site then click on report abuse,and it's the same for fun advice.The law is that if someone critizizes,makes fun or gets you to do something that you don't want to do then the person will be banned of the site and could face court,but the site editors have agree that you were being bullied.
According to your profile you're 47 and you have a cyber bully?
I don't think there are particular laws for adults who are being bullied (other than just calling the police about harassment), but for teens there's this site: