Legal Questions

A blogger has claimed by son is in a gang and he isn't, and now his life is in danger. What can be done to have the blog taken down?

My son was riding in a car on Easter Sunday along with his long time friend and his friend's father when seconds later, shots rang out. My son was grazed in the face and now he's scared to go to school. My reason of writing is to see if I have a case against the blogger who wrote about the incident, saying that my son is hooked up in some type of gang. My son is not in a gang and I'm a very strict parent. I strongly believe my family's lives are in danger due to the blog that was posted on this website. What can be done to fix this? Can an attorney help with this?