Khalin was diagnosed with ADHD which caused trouble for him at school & had a hard time doing his homework. He also had a tendency of getting angry at his parents & sometimes fought with his brother. When he started to hit his mother, she put him in a time-out. Karolee admitted that he wanted to be good and he couldn't be good. Jo revealed that the things he did were impulsive and that he can't help it.
He was 6 years old at the time of his appearance on Supernanny and as of 2017, he is 17 years old.
Khalin's Facebook page - His appearance is a bit more gothic on there.