With the recent tragic news of Holly and Jessica, I have tried to tell my 4 year old about strangers and bad people. He has Cerebral Palsy, learning difficulties and speech problems, so he is quite hard to explain things to. He is able to walk and talk but he is so trusting. He will talk to anyone. I don't allow him to go out without me but I feel that he will soon want some indepentant. I am worried about him. He is already asking to play with the neighbours kids but I won't let him unless I am there. What should I do and how can I explain it to him as he thinks that Holly and Jessica can go to hospital and get better.