Kailia Posey’s mom, Marcy Posey Gatterman, announced the news on Facebook Monday.
“I don’t have words or any thoughts. A beautiful baby girl is gone,” she wrote. “Please give us privacy as we mourn the loss of Kailia. My baby forever.”
Marcy Posey Gatterman did not share her daughter’s cause of death. A rep for the Whatcom County Medical Examiner confirmed the office is investigating.
Marcy Posey Gatterman had posted photos of Kailia Posey attending prom just a few days before her death.
Kailia Posey was a young star on the TLC reality series, and She became a popular GIF when her evil grin went viral.
Kailia Posey came up with the pageant circuit as a teen. On Instagram in January, she even announced that she was gearing up to compete as Miss Washington Teen USA in February.
Fans have flooded her social media accounts to share their prayers and heartbreak.
“Can’t even believe this has happened. I’m praying for you guys to get through this. She always was so kind to all of us,” commented “America’s Got Talent” competitor Kadan Bart Rockett.
“Rest In Peace. ❤️,” wrote one fan.
“playing soccer with you is now a core memory. heaven gained an angel??,” added another friend.