The blood discovered on the front porch of Nancy Guthrie's Tucson home was initially treated as a minor finding by investigators before forensic testing later confirmed it belonged to the missing 84-year-old, according to a new report that raises fresh questions about the early stages of the investigation.
The claim, published by The Wall Street Journal and attributed to sources familiar with the investigation inside the Pima County Sheriff's Office, suggests detectives initially gave the blood 'little regard' believing it may have resulted from something relatively routine, such as a nosebleed or a minor head injury.