JAMES Webb can't remember the sickening crack the two bones in his right forearm made when they were broken in half, or the excruciating pain that followed as those two bones were forced in the opposite direction.
While James struggles to remember how the incident occurred, two very different versions have emerged.
One maintains the injury was an accident, while the other suggests it was a violent attack on a fellow student.
After talking with three boys who witnessed the event, James's mum, Vikki Webb, is certain her son's injuries were no accident.
She said the violence erupted unexpectedly and unprovoked during a game of football at the Ballina High School oval during recess last Tuesday.
Ms Webb said the fellow Year 7 student started swinging James around by the arm and then pushed him onto the ground.
When her son was on his knees the other boy jumped on his back and everyone heard the loud crack that was James's arm breaking.
The boy was still on his back with his hands around James's neck when he allegedly kicked James's broken arm, pushing it in the other direction.
A student who witnessed the incident later told Ms Webb he heard Jame's attacker laugh and say it was fun to do that to his victim.
Department of Education spokesman Sven Wright, who provided a response to The Northern Star on behalf of Ballina High School, said the boy suffered a broken right arm after "he was pushed over and then fallen on by another boy" during a game of 'grab' football on the front oval.
"The evidence of student and staff reports does not suggest a deliberate attempt to break the victim's arm," he said.
Despite stating the injury was not "deliberate", Mr Wright indicated the school had suspended James's attacker for four days.
Inspector Nicole Bruce from the Ballina police station said a formal complaint was made to police and the investigation was continuing.