Tanner Martin, who welcomed his first child with his wife, Shay Wright, on Thursday, May 15, died at age 30 after his five-year journey with stage 4 colon cancer.

Tanner Martin, a social media influencer and new dad who chronicled his life with colon cancer for nearly a half million followers on Instagram, has died at age 30. He made the announcement himself in a prerecorded video posted Wednesday. (Watch it below.) “Hey, it’s me, Tanner. If you’re watching this, I am dead,” he said with a laugh.