A 58-year-old mom was found stabbed to death in the doorway of her Brooklyn apartment — just days after she chillingly told her Facebook followers that she thought something would happen to her, authorities and sources said. 

Latanya Parker was discovered lying in a pool of blood with her throat slashed just outside her Bedford-Stuyvesant apartment on Fulton Street near Marcus Garvey Boulevard around 3:15 p.m. Tuesday, cops said.

Parker also had a single puncture wound to her chest and two more on the left side of her body when her own daughter found her — with dried blood also caked on her mouth, according to police sources.

She was pronounced dead at the scene by EMS workers, police said. 

Investigators found bloody bootprints in the hallway in front of Parker’s apartment door, the sources said. 

Her death has been ruled a homicide, the NYPD said Wednesday.

A daughter of the slain woman’s told investigators that her mother had posted two disturbing Facebook Live videos days before her death, the sources said. 

In the first video, she was seen with a man who appeared to be her ex-boyfriend, according to the sources. 

In the second, she warned, “If something happens to me … now you know who did it,” the sources said. 

The victim’s daughter said she last heard from her mother around 1:45 a.m. Sunday, when her mom had returned home, according to the sources. 

Neighbors reported last hearing from her on Saturday night, after a birthday party. 

“I would never think of anyone who would attack her,” neighbor Tawany Smalls told The Post Wednesday.

“They just celebrated her birthday on Saturday,” Smalls said of the family. “They figured maybe she lost her phone so the older daughter came to check in on her and that’s when she found her.

“It’s just a very sad situation,” she added. “Whoever did this, I hope they get brought to justice.”