My recollection was not entirely accurate. Here's the article I referenced.
According to interviews, police records and investigatory documents:
Early that afternoon, Duane's parents called 911 and reported that he was unresponsive.
A North Port paramedic found Duane in his parents' bedroom, lying face up on the ground between the playpen and the door. His heart was not beating.
Duane was pale with dark colored patches on his skin. Blood was coming from his nostrils.
He was pronounced dead at the scene.
Bury told paramedics that Duane had been vomiting earlier that week and that morning. She took Duane to a doctor, she said, but was told his condition was normal.
She, Walsh and Duane took a nap in their bed sometime after feeding Duane at 8 a.m. They woke up around 1 p.m. and found the baby unresponsive.
As police escorted the couple from the home, Bury was reported as saying I killed my baby.
http://www.heraldtribune.com/article/20151018/article/151019687?p=2&tc=pg