Steam rises from Yellowstone's hydrothermal features as 17-year-old Tylee Ryan hugs her 7-year-old brother, Joshua "JJ" Vallow. The photo taken Sept. 8, 2019, the last day Tylee was seen, was released Thursday by the FBI along with another photo showing JJ at the park with mom Lori Vallow. The agency is asking anyone who visited Yellowstone on Sept. 8 to share "photos and video which may have captured images of these persons and [their] vehicle, or images of crowds and other park visitors where these individuals may be present" as it continues to investigate the disappearances of Tylee and JJ, who was last seen at school in Rexburg, Idaho, on Sept. 23, per ABC News.
Vallow and the children traveled to the park with Vallow's brother, Alex Cox, in a 2017 Ford F-150 with the Arizona license plate CPQUINT. Cox died in December, though authorities have not released a cause of death. He'd shot and killed Vallow's former husband, Charles Vallow, last year in what he claimed was self-defense, per Fox News. Lori Vallow married Chad Daybell in October and had been living with him in Hawaii since December. The 46-year-old was arrested after failing to comply with a court order to produce the children. She was extradited from Hawaii to Idaho to face charges including felony child abandonment and solicitation to commit a crime and is due in Madison County Court on Friday. (Daybell claims the kids are safe.)