TORONTO -- A teenager charged with first-degree murder in the stabbing death of 14-year-old boy in front of his Hamilton school is now facing additional charges in another case.

Devan Bracci-Selvey was stabbed in front of Sir Winston Churchill Secondary School around 1 p.m. on Oct. 7.

Right before the incident, he had called his mother to ask her to come get him as a group of teenagers was bothering him. She was already at his side when officers arrived at the school to transport him to the hospital.

He later succumbed to his injuries.

Two suspects, an 18-year-old male and a 14-year-old male, were charged with first-degree murder in connection with the incident.

Neither suspect can be identified under the Youth Criminal Justice Act.

In December, the 18-year-old man’s charge was reduced to assault with a weapon. He was released on bail.

The 14-year-old still facing a first degree murder charge appeared at the John Sopinka Courhouse in Hamilton on Thursday wearing a black zip-up sweater. He is now facing additional charges, including assault causing bodily harm, forcible confinement and uttering threats.

"He's a monster. That was hard," said Laurie Dennison, the mother of Bracci-Selvey's girlfriend. She and other supporters were visibly upset in court Thursday when the accused was brought in.

Hamilton police investigators tell CTV News Toronto the new charges stem from a previous incident involving another victim. A complaint was brought forward to divisional detectives who laid additional charges after the teen’s arrest.

According to investigators, the complaint stemmed from an incident that occurred on June 2017, while the victim was at a residence in the east end of Hamilton. Police said an altercation took place between the victim and the accused.

“The accused assaulted the victim with a weapon, threatened the victim and forcibly held the victim against his will,” police said in a news release issued Thursday. “The victim suffered non-life threatening injuries and later sought medical attention after leaving the scene of the assault”

Police also said that the victim and the accused were involved in a verbal argument in January 2019, and that the victim was allegedly threatened.

The 14-year-old was remanded into custody and is scheduled to appear in court again on Jan. 29.