Yоu аre seeing а 6 yeаr оld bоy in your clinic. He has intellectual disability and was also diagnosed with autism. He has a long narrow face and a prominent jaw. His mother tells you that he did not speak until he was 3.5 years old. You talk to his mother, and learn that she is currently experiencing menopause at age 35. She is on medication for anxiety. What is the child's likely diagnosis?