brian laundrie. authorities say dive teams and sonar systems are being used to search large bodies of water and confirm cadaver dogs have been in use throughout the entire effort which began saturday. meanwhile, social media continue to provide leads on brian s steps before he disappeared. these internet absolutes and armchair detectives have come out in numbers. the amount of information that they re able to pull has really been incredible and really help leading the investigation. i saw brian laundrie. a tiktok user says she pointed the fbi to the wyoming camp site where authorities found the body of brian s girlfriend gabby petino on sunday. jessica schultz says she remembers seeing brian in the couple s white camper van on august 26th. i m 100 percent certain it was just him. there was no gabby. police say brian returned alone to his parents florida home on september 1st, 10 days before gabby was reported missing. brian s parents say their son left the house on septemb