An unsettling new message was sent to TMZ by a person claiming to know who kidnapped Nancy Guthrie, with a chilling tone. The person requested 1 bitcoin in exchange for revealing the kidnapper's identity. No activity has been seen in the Bitcoin account. The situation has escalated, with concerns of retaliation. Guthrie, 84, went missing from her Tucson home, sparking a large investigation. The FBI released footage of a suspect tampering with her Nest camera. Neighbors are urged to check security footage for suspicious activity.