Full interview: Woman who spotted Gabby Petito's likely van

On August 27, the Bethune family was trying to find a spot to camp for the night when they found themselves in the Spread Creek camping area near Grand Teton National Park, where remains were found Sunday matching Gabby's description. Jenn Bethune said the van they passed by appears to be the converted camper van that Petito and her fiancé – and person of interest --Brian Laundrie, were using to travel.