Savannah Guthrie's mother, Nancy Guthrie, missing day 38.

Is an alleged sighting in Mexico credible? And, we find out the latest on Annie Guthrie's car.

Online, Annie Guthrie, Savannah's sister, Nancy Guthrie's daughter, has been subjected to a lot of torment and accusations about where is her car?  Maybe we have an answer.

Also, Sheriff Chris Nanos is hit with a $1 million lawsuit. Between that and his reality show, is he a little too distracted to find Nancy Guthrie? And can her hearing aids be tracked?

Joining Nancy Grace today:

• Brian Fitzgibbons – Director of Operations for USPA Nationwide Security (leads a team of investigators specializing in locating missing persons), Marine and Iraq War Veteran; Instagram: @uspa_nationwide_security
• Kurt Dabb  - Former Detective at Pima County Homicide
• Scott Eicher- A Founding Member of the FBI’s Cellular Analysis Survey Team (C.A.S.T); Historical Cellular Analysis Expert; Former FBI agent of 22 years; Former Police Officer and Homicide Detective with Norfolk Virginia Police Dept. (having served 12 years); Currently with Precision Cellular Analysis - Handling Criminal, Defense and Civil Case
• Dave Mack - Investigative Reporter, 'Crime Stories'