Her identity is hidden. Only a shadowed outline of her face appears. She's telling the story of a brutal and terrifying attack.

The woman is the mother of one of the alleged victims in the Wilson school bus hazing incident.

Three students and two teachers have been charged in connection with the case.

For the first time publicly, the woman describes what her son told her about a 30-minute bus ride from Niagara Falls on the night of April 17.

"'Mom, they throw us in the aisle," she recalls about the night her son told her what allegedly happened. "All of the varsity teammates put themselves in the aisle so nobody can see what's happening in the back of the bus. At that time, somebody covers these boys' mouths. And they all take turns punching, kicking, slapping."

The full interview can be seen on ESPN's "Outside the Lines." It airs this Sunday at 9:30 a.m.

The woman said her son was sexually abused on the bus after the suspects placed a foreign object in the boy's rectum.

Three students, two 16-year-olds and another boy, 18, are facing charges.

Two coaches on the bus are also facing charges for allegedly not taking action to stop the attack.