Detectives said an autopsy showed the baby was asphyxiated at a home in the 6100 block of Saint Giles Street on May 29, 2012.
The investigation of what happened has gone on for years and now 32-year-old James Fidel Jennings, who was caring for the infant when he died, is charged with murder.
Family members who spoke with ABC11 Wednesday identified the baby as Zavion Haywood and said a cousin who was 4-years-old at the time of the alleged murder is now old enough to understand what happened and what they witnessed, hence the murder charge.
"He was happy. He always smiled, joyful, laughed. He was just a happy, free spirit, happy baby," said Zavion's aunt Shantell Hunter.
Hunter recalled the day the infant died.
"My sister was at work and my mom was here with the baby. He had happened to say that he was putting the baby down for a nap. But I guess when he was putting the baby down for a nap he was killing the baby," she said.
Hunter said the family still lives in the apartment where it happened.
"It feels like I'm leaving him behind if I leave, she explained. "But, yeah, I miss him every day."
Jennings is being held without bond in the Wake County jail.