CNN Forensic Files April 19, 2015 05:57:00
A significant manufacturing flaw that tied him to those letters. lewis bought the cyanide in a local supply store using an alias, but forensic handwriting analysis concluded that lewis signed the receipt. lewis tried killing his wife by putting cyanide in her alcoholic beverage but she stopped drinking it because of its foul odor. he also put cyanide in her tea kettle. this, too, was unsuccessful. so that is when lewis decided to use his wife's security pass to put cyanide in the office water cooler and coffee pot. on monday morning, julie williams was the first one to drink from the water coo...