CINCINNATI — An 8-year-old boy shown on surveillance video being knocked to the floor unconscious at school two days before he killed himself told the staff he had fainted and never said he had been bullied or assaulted, a school spokeswoman said Friday.

Gabriel Taye’s mother didn’t learn of the bullying until her attorneys saw a copy of an email written by a Cincinnati police homicide detective in an investigative file that describes the scene outside a boys’ bathroom, her lawyers said. The attorneys have questioned why the mother was told he fainted on Jan. 24 when the video shows he had been injured by another boy at Carson Elementary School.

The school spokeswoman said administrators weren’t aware of the recording until days later when the detective investigating Gabriel’s suicide requested surveillance videos from security officials.

Meanwhile, the Hamilton County coroner said she is reopening the investigation into Gabriel’s suicide. He hanged himself with a necktie in the bedroom of his Cincinnati apartment on Jan. 26.

On Friday, a small group of demonstrators gathered on the sidewalk outside Carson Elementary, with some parents complaining about their children being bullied.

Carolyn Emery has two children at the school, including a daughter who was in first grade with Gabriel. She said he was a “very loving little boy who always had a smile on his face.”