Murray died "surrounded by people who love him and his transition to heaven was very peaceful," a post on the Prayers for Dorian Facebook page read late Tuesday night. "He was embraced by both mom and dad."
Murray had been receiving treatment for rhabdomyosarcoma, a rare form of cancer, for four years when doctors found cancer cells in his spinal fluid. At that point, his parents, Melissa and and Chris, decided to stop treatment and make one of their son's dreams come true.
"He mentioned to his father that he wanted to be famous in China because they have the Great Wall there and Dorian had seen it in a cartoon," Melissa told PEOPLE in January.
Melissa and Chris started the hashtag #DStrong, and it quickly spread across the globe – not just to China, but to countries as far-flung as Australia. Even Justin Bieber got in on the movement.
"I've gotten Paris, Japan, Switzerland, Italy," Dorian told WPRI in January. "They're just saying to keep fighting. They believe in me. And it’s just really nice to know that so many people have my back for me."
The family has asked for privacy in the wake of Dorian's death, and donations can be made to...
The Dorian J. Murray Foundation
PO Box 1225
Westerly, RI 02891
… which the family established earlier this week with the goal of bringing awareness to pediatric cancer and raising money to support research for the disease and families of children fighting it.