In a probable cause affidavit previously obtained by PEOPLE, Craig allegedly began plotting his wife’s murder in February 2023, when investigators claimed he purchased arsenic online and searched “how many grams of pure arsenic will kill a human” and “Is Arsenic Detectable in Autopsy?"

A daughter of James Craig, the Colorado dentist accused of fatally poisoning his wife and the mother of their children, testified Thursday that her father asked her to make it seem like her mother wanted Craig to order the ingredients — which ultimately led to her death — so she could ingest them.