[Warning: Potentially Triggering Content] This story continues to get more awful as more time goes on, and we still don't have any answers... In a major update on Thursday, authorities there have now confirmed that blood found on the porch of Nancy Guthrie's Arizona home belongs to Nancy herself. Pima County Sheriff Chris Nanos revealed this result in a press conference, saying the DNA results "came back to Nancy." Ugh. This, days after the 84-year-old was apparently abducted. It's a grim development that adds a terrifying new layer to an already heartbreaking case.