Forensic toxicologist Brianna Peterson testified that Eric Richins had a lethal dosage of fentanyl in his body at the time of his death, along with other substances.

Researchers urge lowering the admissible daily intake, or toxicity threshold, for already approved chemical compounds; long-term testing on the full formulations of new pesticides and new plasticizers; and requiring all toxicological data and experimental protocols for approved commercial compounds be made public.

Researchers urge lowering the admissible daily intake, or toxicity threshold, for already approved chemical compounds; long-term testing on the full formulations of new pesticides and new plasticizers; and requiring all toxicological data and experimental protocols for approved commercial compounds be made public.