What do 22-year-old “van life” blogger Gabby Petito’s final videos reveal about what might have happened to her? Gabby and her fiancé, Brian Laundrie, recorded themselves traveling cross country, but two months after leaving Florida, Brian returned to Florida alone. He refused to speak to investigators and her family — and is now missing. Plus, despite posting videos looking like a happy couple, police released a very different kind of video — bodycam video of a distraught Gabby crying about an altercation with Brian in the days before she disappeared. TV host Nancy Grace, a former law enforcement officer and FBI defense tactics instructor, a criminal defense attorney, and a body language expert, all weigh in on the unusual circumstances.