The incident at age six and his current problems may not be related. What is his mother's thinking on the subject?
get the mother to get him a psychologist, i can imagine that that would come up again and hit him hard, on top of the regular hardships of life that might be just one too many to bear,
i think your people just get him to life first giving him more company and boosting his confidence level. this may be due to lack of confidence level