Henry died last Tuesday at WakeMed following a shooting at his home the evening before.
Henry's grandfather, Daniel Henry, told ABC11 last week that the pellet gun involved in the child's death was his and he used it for squirrel hunting.
"I saw him coming down the steps, and I had the gun propped and I know that he likes guns," Daniel said.
The grandfather said he then reached for the gun to put the safety on and that's when it went off, hitting TJ in the head.
Police said there was no sign of foul play and the shooting was ruled accidental.
Henry is being remembered as a little boy who was loved by many -- a little boy who saved seven others through organ donation.
"It keeps him going; he lives on even though he's not here with us," family member Brenda Parker Johnson said.
As his family laid him to rest Wednesday, they urged others to secure or get rid of guns in their homes.
Henry was a second grader at Lynn Road Elementary School.