Diffuse intrinsic pontine gliomas, or DIPG, shackle themselves so insidiously around a young person’s brainstem that no chemo or scalpel can wrest them out. Most children didn’t survive a year.

His family posted on Facebook that 6-year-old Crew passed away at 5:45 p.m. on Saturday after battling diffuse intrinsic pontine glioma (DIPG). The family said, “Please pray for our hearts.