What Ifs Happened to My Son?

My son and I used to frequent a park on the river in Florida. A group of three children that seemed to be alone were hanging around with my son. They asked him lots of questions like, how old are you and where do you go to school? He was answering while climbing around and didn't seem to be paying a whole lot of attention. After a few minutes they got off the jungle gym and began walking toward the road. My son who was tiny was walking with them. When I screamed my son's name he turned around and bolted back to me. The kids said they had to show me something. We left immediately. This happened when he was five years old in the summer