A US dentist accused of the deadly poisoning of his spouse searched the web for "how to make murder look like a heart attack" weeks earlier than she died, a court docket has heard.

James Craig, 45, additionally sought solutions to the query "is arsenic detectable in an autopsy?" at across the similar time, it's alleged.

Detective Bobbi Olson advised a court docket the defendant carried out the searches in February on a pc in a room at his dental follow within the Denver suburb of Aurora, Colorado.

It got here simply earlier than his spouse, Angela Craig, made repeated journeys to hospitals complaining of signs, together with dizziness, vomiting and confusion that puzzled docs, the listening to was advised.

The mother-of-six died in March after being taken off life help following her third journey to hospital.

Blood exams later revealed that Mrs Craig died after being poisoned with cyanide and tetrahydrozoline, a substance present in eye drops.

While his spouse of 23 years was being handled in hospital, Craig was allegedly assembly one other lady, fellow dentist Karin Cain, who flew in from Texas to go to him.

Police consider he laced his spouse's pre-workout protein shakes with poison so he may pursue a relationship with Ms Cain, based on court docket paperwork.

Fellow dentist denies being 'motive'

Ms Cain advised ABC's Good Morning America she had been within the strategy of divorcing her husband of just about 30 years when she met Craig at a dental convention in February.

She mentioned they have been collectively for 3 weeks however said she didn't willingly have a relationship with a married man.

"If I had known what was true, I would not have been with this person," she mentioned.

Asked whether or not she thought Craig killed his spouse to be together with her, Ms Cain mentioned they'd not been planning a future collectively and added: "There's no way I'm a motive".

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Dentist suspected of poisoning protein shakes

Craig has but to enter a plea within the case and his lawyer declined to remark to reporters earlier than a listening to to find out if he'll stand trial for first-degree homicide.

Police launched ab investigation after Craig's colleague and buddy, Ryan Redfearn, advised a nurse the defendant had ordered potassium cyanide - despite the fact that they didn't want it for his or her work, based on an arrest warrant.

Detectives suspect Craig put arsenic in one of many protein shakes after which, after she survived, he ordered a rush cargo of the cyanide that he advised the provider was wanted for a surgical process.

He requested an workplace supervisor to not open that bundle however one other worker did, resulting in its discovery and eventual disclosure to police.

The supply of a 3rd toxic substance he's accused of ordering, Oleandrin, was allegedly intercepted by authorities after they started investigating him.

Craig advised Mr Redfearn he ordered the potassium cyanide for his spouse and advised a social employee that she had been suicidal and depressed ever since he requested for a divorce in December, though none of their youngsters mentioned something about suicide makes an attempt, based on an arrest doc.

Mr Redfearn additionally advised investigators that Craig was on the verge of chapter and had been having issues in his marriage, court docket paperwork mentioned.