Tanner Martin became a first-time dad on May 15, five years after he was diagnosed with stage 4 colon cancer at age 25

Martin, who died this week of colon cancer at the age of 30, said his five-year battle began with a single symptom.

Social media influencer Tanner Martin has died of colon cancer weeks after welcoming his first baby. The 30-year-old, who went viral online for documenting his journey with stage 4 colon cancer, announced his own death in a lighthearted, pre-recorded video posted to Instagram by his wife, Shay Martin.