Daniel Coleman, known for the “Danny Go!” YouTube channel, announces that his 14-year-old son, Isaac, has died. Multiple outlets report that Coleman shared the news in an online statement posted shortly before Isaac’s death on Thursday. The reports say Isaac had been battling aggressive mouth cancer and that Coleman had previously disclosed the diagnosis. One source adds that the cancer is described as stage 3 mouth cancer, and that Coleman said the condition was diagnosed in December 2025. Another outlet reports that Coleman wrote about the family’s efforts to spend time with Isaac in the period before his death, describing a decline in his health and expressing gratitude for the time remaining. Coleman also shares another son, Levi, with his wife Mindy Coleman. The articles describe the announcements as personal posts rather than public statements from medical authorities, and they focus on the family’s account of Isaac’s illness and passing.