to echo both their words, it seemed like a dream. at that time, there was no out ward indication of travel. in sign that something may have been very wrong. how did their trip go from this to this? >> he didn't like hit me in the face. he didn't punch me in the face or anything. >> did he slap your face or what? >> he grabbed me with his nail. i can feel it. it burns. >> that's police body cam footage from utah on august 12th. six weeks after gabby and brian started off on their trip. w we'll come back to that later. we know gabby and brian checked out of this hotel in salt lake city august 24th. that same day she facetimed with her mom and said they were headed to grand teton national park in wyoming. it was the last time her mom