The Colorado dentist accused of fatally poisoning his wife admitted in writing to filling her antibiotic capsules with cyanide and bringing a poison-filled syringe to her hospital room, his murder trial heard on Monday.

Craig, now 47, made the sensational confessions in an iPhone note he wrote on his device in the hours after he was confronted by a longtime friend about a suspicious order of cyanide to his workplace - and in the hours after doctors told Craig his wife was essentially brain dead.

Craig is charged with first-degree murder in connection with the March 2023 death of his wife, Angela, 43, the mother of his six children.

Prosecutors argue the dentist poisoned her with cyanide, arsenic and tetrahydrozoline, a chemical found in eyedrops, amidst mounting financial troubles and extramarital affairs, particularly a budding romance with a Texas orthodontist.

The defense contends Angela was suicidal and 'manipulative' - and jurors heard portions of Craig's iPhone note explanation read out in court Monday by Aurora Det. Bobbi Jo Olson, whose testimony was continuing from Friday.