Proving Poison
- Episode aired Jul 15, 2012
- TV-MA
- 46m
The #1 murder weapon of choice for centuries, poison comes in millions of killer compounds. Can modern science ever detect them all? Examining the cases of Marie Lafarge and Michael Swango.The #1 murder weapon of choice for centuries, poison comes in millions of killer compounds. Can modern science ever detect them all? Examining the cases of Marie Lafarge and Michael Swango.The #1 murder weapon of choice for centuries, poison comes in millions of killer compounds. Can modern science ever detect them all? Examining the cases of Marie Lafarge and Michael Swango.