VIDEO CONFESSION OF NATAVIA LOWREY ADMITTING SHE BEAT LINDA STEIN TO DEATH!

To Natavia Lowery, Linda Stein had become a monster.

"She just looked evil," Lowery told cops in a chilling confession played Thursday for jurors.

"She really didn't look like the person I worked with, she didn't look like the Linda that never yells at me," Lowery said of the famed Realtor to the stars who was found dead in her Fifth Ave. penthouse on Oct. 30, 2007.

Lowery blames everyone but herself in the video.

She claimed Stein, the former manager of The Ramones, was smoking pot and puffing it in her face.

She said Stein hurled uncharacteristic racial insults at her.

And she lashed out at her employment agency for not finding her another job after she complained about her 62-year-old boss.

Lowery said she just snapped.

Rapt jurors sat forward in their seats, as she was asked on tape how many times she hit Stein.

"Probably six," she said between sobs. Sitting in the court gallery, Stein's daughters, Mandy and Samantha, grew pale as the tape rolled on.

Assistant District Attorney Joan Illuzzi-Orbon is heard on tape asking if Lowery smashed Stein in the back of the head.

Yes, the 28-year-old said, "and a couple more times. ... I was mad, I was confused, I was angry, paranoid - it was like a feeling I never had before."

After the fatal beating, "I just kept calling her name, just kept shaking her ... I didn't look at her face."

It was like "rocking a baby - you're just calling their name, you know?"

In the hours after the killing, Lowery went to lunch and came and went from the murder scene. At one point that afternoon, she went into an office bathroom and started "praying."

"I felt bad, I felt sorry, really sorry," Lowery said.

Lowery's legal team has argued that the confession was forced - and insist their client is innocent.