Drew Calver took out his trash cans and then waved goodbye to his wife, Erin, as she left for the grocery store the morning that upended his picture-perfect life.
Minutes later, the popular high school history teacher and swim coach in Austin, Texas, collapsed in his bedroom from a heart attack. He pounded his fist on the bed frame, violent chest pains pinning him to the floor.
"I thought I was dying," the 44-year-old father recalled. He called out to the only other person in the house, his oldest daughter, Eleanor, now 7. Using the voice-recognition feature on his phone, he texted his wife, who was at the store with their youngest, Emory, now 6. A neighbor rushed him to the nearby emergency room at St. David's Medical Center on April 2, 2017.