Family and friends gathered Tuesday morning to pay their final respects to a young boy who made such a large impact in his short life.
Six-year-old Devin Suau passed away last week from a rare form of brain cancer. He would have turned seven on Friday.
His funeral mass was held in Sudbury. He will be buried in Framingham.
Devin's casket was colored green - his favorite color.
Dignitaries included Boston Police Commissioner Williams Evans and Mayor Marty Walsh.
Devin's family started the hugely popular #WhyNotDevin social media campaign after learning of his heartbreaking diagnosis earlier this year following a snowboarding incident.
"We could not believe it," his father James Suau told NBC Boston in February. "Our lives will never be the same again."
His cancer, known as Diffuse Intrinsic Pontine Glioma (DIPG), is a rare and aggressive form of cancer that affects roughly 300 children in the United States each year.
The #WhyNotDevin campaign, which raised awareness and money for Devin's condition, attracted national attention as well as the attention of public figures, including Patriots quarterback Tom Brady and Boston Mayor Marty Walsh.
"You know, I've been very fortunate to meet a lot of courageous people over the years, and you know, it's a very tough situation," Brady said on Friday, while getting choked up, after learning of Devin's passing. "I hope the family is doing OK."
Those who knew Devin say he has made a big difference.
"I'm an old lady by comparison and I haven't made one 90th of the impact he has made on the community and the world he has," said family friend Loralei Capuzzi.