Colorado Dentist Arrested for Poisoning Wife in Calculated Plot.

An Aurora dentist, James Craig, was arrested on suspicion of first-degree murder after his wife, Angela Craig, was poisoned to death. Investigators believe James Craig put poison in protein shakes he made for his wife. James Craig bought arsenic and cyanide days before his wife's death, searched online about how to poison someone, and was having an affair. The couple had been having marital troubles before Angela's sudden severe sickness this month. James Craig ordered arsenic from Amazon.com on Feb. 27, police allege. He received the package on March 4, and two days later, his wife was admitted to a hospital with symptoms that aligned with poisoning.