Article continues below advertisementAn ex-NYPD hostage negotiator believes more than one perpetrator was involved in the alleged kidnapping of Savannah Guthrie's missing mom, Nancy Guthrie.Wallace Zeins told CNN on Tuesday, February 3, that the circumstances surrounding the 84-year-old's suspected abduction, including the purported ransom note and her limited mobility, suggest multiple people carried out the crime. Explaining his reasoning, he pointed to the fact that the grandma weighs "150 pounds" and is "not in the best of health.