Possibly Result of Scientology Infant Diet
This is a very sad case as it was preventable.
Judging from pictures of him as an 18 month old I can tell that he is malnourished in a way that would not have occurred had he been a well-nourished breastfed baby/early toddler, or even a well-nourished formula-fed baby/early toddler. He appeared to have rickets at this age which is easily caused by the Scientology diet L. Ron Hubbard tells his followers to feed their babies that is made from corn syrup and barley water and lacks protein, omega fatty acids essential for brain developement, calcium, and every other nutrient a growing infant needsetc.
This diet is tragic for these and other parents who thought they were doing best for their child. They obviously learned their lesson and did not repeat this unknowing mistake with Ella Bleu who is obviously a well-formed breastfed baby, they stayed the hell away from this diet with her.God help them through this.
Anyone who wants to prevent autism, adhd, seizures, epilepsy, please do not vaccinate (especially with the most controversial ones) and please breastfeed exclusively for 6 months, then additionally with other foods until 12 months, then as far beyond that as is mutually benefitial and everything would be fine. Also ensuring the growing child recieves an additional source of omegas and vitamin D through such sources as Nordic Naturals or Carlson's cod liver oil until they stop growing at adulthood will create a perfectly formed child as well. See the Weston A. Price diet.
The chemical sensitivity to household products can be caused by the myelin sheaths not having a very thick coating because he never got enough omegas (but I'm no expert on this thing, only the other). Tragic, just tragic unintentional nutrient starvation, I'm sure this makes their grief especially unbarable for them.
Even as a teenager I would have had him on daily cod liver oil and Stem Enhance (releases millions of stem cells from your own marrow naturally with it's ingredients from the sea). As he was still growing and a lot could have been repaired. Also Cellfood apparently helps epileptics.