India, May 28 -- New theories have emerged in the high-profile Nancy Guthrie missing case, the 84-year-old mother of NBC "Today Show" host Savannah Guthrie, as investigators explore whether the case may involve a violent crypto-linked kidnapping strategy known as a "wrench attack."

Former FBI agent Jennifer Coffindaffer has suggested that the incident may not be a random abduction but part of a growing trend where criminals use physical violence to access cryptocurrency wealth. The case has already drawn national attention after surveillance footage and forensic evidence pointed to a possible forced abduction from her Arizona home.

Nancy Guthrie disappeared from her residence in the Catalina Foothills area near Tucson on February 1, and...