The FBI says it has authenticated at least one ransom note, linked two notes to the same IP address and traced a $152 test transfer tied to a $4M Bitcoin demand in the disappearance of Nancy Guthrie.Retired FBI agent Jason Pack and investigators note that early messages contained scene details — a broken floodlight and what Nancy Guthrie wore — and surveillance footage shows a masked, armed intruder while DNA evidence was collected.Savannah Guthrie has offered a $1M family reward, authorities say the reward pool exceeds $200K including $100K from the
FBI, and investigators continue to analyze communications, IP data and financial trails with no arrests announced.