CNN Forensic Files June 14, 2014 07:50:00
Sent himself at least one of the threatening letters, perhaps more. and on the shelf in his office scientists found trace amounts of cyanide. but how did lewis harry gain access to his wife's office building to poison the water? >> a key card system is used to gain access on weekends. you have to use the card to scan to get in the door. >> the office security system indicated somebody entered the office on the weekend before the poisoning. >> the card that was used was diane harry's, used early that morning. >> but diana insisted she had not gone into the office that weekend. >> the informatio...
Source: archive.org