The mother of a 15-year-old boy who was stabbed to death in a Bronx school Wednesday has spoken publicly about her son's death for the first time.

Matthew McCree died after getting stabbed in the chest with a switchblade at the Urban Assembly School for Wildlife Conservation in the West Farms section of the Bronx. A 16-year-old boy, Ariane Laboy, was also stabbed and badly injured.

Louna Dennis, McCree's mother, said she was running late for work that day and her son made her breakfast. Hours later, she would learn that her son was fatally stabbed. Leading up to Friday's news conference, there was speculation that bullying might have been involved in his death, although police said there were no signs that the two boys who were stabbed ever bullied the suspect.

A family spokesperson for the suspect, 18-year-old Abel Cedeno, said the teen was bullied because of his perceived sexual orientation.

The victim's mother doesn't believe that's the case, saying her son was not a bully and was loved by many.

"Honestly there were so many stories that was going on, whether it was pencil throwing, paper throwing," Dennis said. "My son is dead."

A lawyer for McCree's family was also standing at their side, claiming there are serious legal concerns involving the city Department of Education and NYPD school safety, including whether there was adequate student supervision in the classroom where the stabbing took place.