Neighbours described a "lovely" gathering turning to chaos, with two women fighting viciously on the front lawn, with one throwing a chair at the other.
The woman who lives at the address and hosted the event, who did not wish to be named, told the Herald in October it was a "beautiful" day until an uninvited guest arrived.
"I didn't even know her," she said.
"It was a beautiful day, we are all sisters that grew up together. An outsider came in, no one knew that was going to happen."
The victim was believed to be a mother of two.
A 36-year-old woman has been charged with her murder.