Aurora Dentist Charged with Poisoning Wife to Death.

A Colorado dentist, James Craig, has been arrested on suspicion of first-degree murder after allegedly poisoning his wife with arsenic and cyanide in her protein shakes. Police believe he did this so he could be with a woman he was having an affair with. Craig had ordered potassium cyanide and Oleandrin, a poisonous substance found in the oleander plant, and had been Googling questions about the detectability of arsenic in autopsy. He is scheduled to appear in court on Thursday.