Student stabbed to death at New York City school, police say

Tomas E. Gaston

New York City Schools Chancellor issued a statement on Twitter. PEOPLE learns the older victim remains in critical but stable condition at a NY area hospital.

At a Wednesday afternoon news conference on Wednesday, Chief Boyce only said that it appeared that the three students had been involved in a dispute that had been ongoing over the first weeks of the school year before it ultimately escalated.

Cedeno allegedly stabbed both teenagers in the chest around 10:48 a.m. with the three-inch switchblade before walking out of the classroom. That killing came during a stretch that saw four students killed in public schools in 12 months - violence that prompted schools to start installing metal detectors.

While school safety agents raced to the room and the teachers and students tried to stop the bleeding, a counselor confronted Cedeno in the hallway and he handed over the blade, police said.

According to the New York Times, the attack occurred in a building that houses two schools, the elementary school P.S. 67 and the Urban Assembly School for Wildlife Conservation. The 15-year-old died at a hospital; the 16-year-old is in critical but stable condition.

In addition to murder, manslaughter, and attempted murder charges, Cedeno, who lives in The Bronx, also faces one count of attempted manslaughter, two counts of assault, and two counts of criminal possession of a weapon. "He has a good heart", 18-year-old Asia Jones told DNAInfo.

The incident took place about 30 minutes into a history class in front of at least 15 other students. Cedeno then took himself to the assistant principal's office, where police were called, and he was arrested.

"It would have been picked up on the metal detectors, no question", Chief Boyce told reporters.

The New York City Department of Education - the largest school district in the country, with more than 1.1 million students in more than 1,800 schools - has had just one other homicide on school property in the last decade, in 2014 when a 14-year-old boy was killed in front of his Bronx middle school. Matthew McCree was killed and an unidentified student was injured. "I guess he did that kind of to scare them off, not to actually hurt anyone", she said.

But he said the school did not have any official complaint about bullying between the boys. City officials say security will be much tighter on Thursday and metal detectors will be used.

The father rushed to the school, where he saw his daughter, a kindergartener, through a window waving to him.