Nancy Guthrie's missing case may involve a wrench attack, a violent crime related to cryptocurrency, according to ex-FBI agent Jennifer Coffindaffer.

Retired detective is now pointing to a chilling cybercrime tactic in Nancy Guthrie's disappearance.

Ex-FBI Jennifer Coffindaffer suggested Nancy Guthrie’s “porch guy” suspect may be linked to a “wrench attack,” revenge motive, or a lone suspect scenario.

The Pima County Sheriff's Department has responded to claims that Nancy Guthrie’s kidnapping may have been a wrench attack.

Nancy Guthrie's missing case may involve a wrench attack, a violent crime related to cryptocurrency, according to ex-FBI agent Jennifer Coffindaffer.

Nancy Guthrie update: A former FBI agent believes Nancy Guthrie's disappearance may be linked to a violent cryptocurrency crime. This theory, known as a 'wrench attack', involves…

Nancy Guthrie update: As the search for Nancy Guthrie continues beyond 100 days, investigations highlight forensic evidence and DNA testing.