IQ

Kennedy also asserted that fluoride in the water is “associated with arthritis, bone fractures, bone cancer, IQ loss, neurodevelopmental disorders, and thyroid disease.”

National Toxicology Program that found associations between exposure to high levels of fluoride and lower IQ levels in children.

He dismissed defence claims about MacPhail's low IQ and learning disabilities, adding the teenager intended to kill Holly and "knew how final death was".

The court heard MacPhail had been diagnosed with autism spectrum disorder and a low IQ but Mr Brooke said the youth's functioning was "quite a bit higher" than had been suggested by MacPhail's legal team.

Former Fox News host Tucker Carlson described Harris, who was born a U.S. citizen in California, as a "Samoan-Malaysian, low IQ former California prosecutor."