The FBI has released a physical description of the man believed to have kidnapped Nancy Guthrie, the mother of US news anchor Savannah Guthrie. Nancy, 84, disappeared from her Tucson, Arizona home in the middle of the night two weeks ago. The authorities believe she was taken against her will. The FBI has analyzed footage from a doorbell camera and identified the suspect as a male between 5ft 9in (175cm) and 5ft 10in tall with an average build. This is the first time the man in the video has been officially identified as a suspect in the case, which has drawn a huge amount of attention both in the US and abroad. The FBI has received over 13,000 tips since the case began, including 4,000 in the 24 hours after the doorbell camera footage was released. A man was detained earlier this week in connection with Guthrie's disappearance, but he was released after his home was searched. Savannah Guthrie and her siblings have released social media pleas directed at their mother's potential abductors, offering a reward for her safe return. The FBI is offering $100,000 for information leading to Nancy's safe recovery. But here's where it gets controversial... Some experts believe the suspect may have been targeting Nancy specifically due to her family's wealth and influence. And this is the part most people miss... The FBI has not confirmed whether Nancy is still alive, and her family has not ruled out the possibility of foul play. What do you think? Do you have any information that could help the FBI solve this case? Share your thoughts in the comments below.