A heartbroken father has shared a photo of his young son comforting his little sister just hours before she died of cancer.
Beside the tragic photo of six-year-old Jackson Sooter comforting his four-year-old sister Addy, their dad Matt Sooter wrote that his son was saying "goodbye to his partner in crime".
Adalynn "Addy" Joy Sooter, 4, died on June 3 after battling diffuse intrinsic pontine gliomas (DIPG) since November 2016.
"A little boy should not have to say goodbye to his partner in crime, his playmate, his best friend, his little sister", Mr Sooter said.
"This isn't how it's supposed to be but this is the broken world we live in".
App users: View Sooter's Facebook post here.
The grieving father also said Addy's symptoms had gone downhill rapidly over the past day-and-a-half.
'Most likely she doesn't have much time left'.
"Pray for Jackson", Mr Sooter wrote.
The post has since been shared more than 1000 times.
A celebration of life was held over the weekend. "She passed from this life to the next just as she had lived: stubbornly but also peacefully, and surrounded by family". "This morning she donated her tumors, both brain and spine, to scientific research in hopes of saving future children from a similar fate", Sooter wrote.
"In lieu of flowers please consider making a donation to the Michael Mosier Defeat DIPG Foundation, Arkansas Children's Hospital, or Ronald McDonald House Charities of Arkansas", the father wrote in reply.