With the first blow from behind, the victim fell over and never got back up.
For an hour and a half Thursday, jurors in court watched Natavia Lowery's video taped confession.
The 28-year-old is accused of killing her boss, realtor to the stars, Linda Stein.
Lowery worked as her assistant.
"I hit her 6 times, then I stood up in total shock," said Lowery.
The killing happened inside Stein's 5th Avenue apartment back on Oct 30th, 2007.
Lowery says she just wasn't herself that day.
"I was mad, confused, angry, paranoid," described Lowery.
The soft spoken former assistant said her 62-year-old boss actually treated her well and offered to pay for her lunch the day of the killing.
But, she added that Stein blew marijuana smoke in her face and made a racial slur towards her that day.
The D.A. will argue that Lowery had allegedly been stealing from her boss and that the killing happened after Stein confronted her.
In addition to head injuries, Stein's back was also broken.
"My intention wasn't to kill her, just to get her to leave me alone," said Lowery.
On the tape, Natavia Lowery says she used the victim's own yoga stick to kill her.
Lowery has since recanted her confession arguing that it had been coerced.
But, that might to be too late now that jurors have seen that key part of the evidence.