IE 11 is not supported. For an optimal experience visit our site on another browser.
Dec. 1, 201701:04
  • FULL EPISODE: Poisoned

    05:45
  • Poisoned, Part 2

    04:54
  • Poisoned, Part 3

    05:47
  • Poisoned, Part 4

    06:37
  • Poisoned, Part 5

    04:45
  • Poisoned, Part 6

    06:13
  • Poisoned, Part 7

    15:33
  • Poisoned, Part 8

    07:56
  • Poisoned, Part 9

    07:54
  • Poisoned, Part 10

    17:47
  • Poisoned, Part 11

    06:49
  • Poisoned, Part 12

    07:26
  • Now Playing

    One Shot

    01:04

One Shot

01:04

Jeanna Marraffa, Assistant Clinical Director of the Upstate New York Poison Center, explains the process behind the crucial decision that helped doctors and detectives crack Mary Yoder’s case.