Never-Before-Seen Video From Morning of Nancy Guthrie Abduction, FBI Discounts It

3:37 PM PT -- A source connected to the investigation tells TMZ ... the FBI has looked at the video and says it's a dead end ... the area where the cars are driving as well as the ingress and egress has led the Agency to the conclusion the cars have no association with the kidnapping.

Update in the Nancy Guthrie kidnapping case ... a never-before-seen video has surfaced from early on the morning of Feb. 1, the day investigators believe Nancy was taken.

The video, recorded about 2.5 miles away from Nancy's Tucson, Arizona home, shows vehicles speeding by, which could lead to more clues.

Fox News reports the footage comes from a house in the Catalina Foothills neighborhood -- about 7 minutes from Nancy's house -- from a street-facing Ring camera. The property reportedly sits on a back road and avoids major intersections.

The time stamp on the video shows the footage was recorded from about 12:30 AM to 6 AM Mountain Time.

Video taken from Guthrie's front porch the morning of the 1st shows the armed suspect approach the door at 2:12 AM ... Nancy's pacemaker stopped transmitting around 2:28 AM ... the closest incidents of vehicle travel in this new video are seen at 2:31 and at 2:36 AM showing travel in opposite directions ... though it's unclear if it's two different vehicles, or the same one.

This week, the Guthrie family offered up to $1 million for information leading to the return of Nancy. Authorities have detained several people for questioning, but later released them. No suspects have been identified in the case so far.