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GoFundMe, Metro Nashville PD

A homeless man allegedly broke into his ex-girlfriend's Nashville apartment and stabbed her and her 13-year-old son to death in a vicious attack that left a 16-year-old girl hospitalized.

Police say Jermaine Agee broke into Mayra Garcia's apartment before 2 a.m. Monday morning. He grabbed a kitchen knife and went straight to the bedrooms.

After fatally stabbing Garcia's son, Jaden Taylor, in his bed, Agee ordered Garcia and her teen daughter, Alexis, to sit on a sofa in the living room.

Agee then said, "Someone is going to die tonight," according to a police report obtained by PEOPLE.

Garcia fought for her life, and "additional injuries to the victims were inflicted then," the police statement says.

Police say Garcia and Jaden died from stab wounds. Alexis is in stable condition at Vanderbilt University Medical Center, where she is being treated for stab wounds. An 8-year-old girl was not injured.

Agee fled the apartment through the front door, but he was eventually tracked down with the assistance of members of the public.

Homeless persons told police that Agee was a regular at a nearby homeless encampment.

Police say Agee is a convicted felon in Alabama who served nearly 3 years in prison for robbery and theft convictions before his release in June 2018.

Prior to the violence, police were called to an elementary school where Garcia and Agee were arguing in the school's office.

Agee left the school before police arrived. Police observed several bruises on Garcia's face. They assisted her with filing an order of protection against Agee.

A GoFundMe account was created to help pay the funeral costs. The campaign raised nearly $16,000 of the $20,000 goal.