Jones said she was going to make the victim pay, Ms Rollo said.
She said after one weekend Jones spent in Auckland, she returned and showed Ms Rollo photos on her phone of the victim with bruises all over her face and a shaved head.
Ms Rollo said Jones had told her the victim had been tied to a chair, given a "hiding", had her hair shaved and been forced to sign her car over into another person's name.
Jones, Torrance, Black and Michelle Blom are accused of targeting the victim again shortly after the first attack.
Prosecutors say they pulled the victim off a central Auckland road and subjected her to a long attack in a basement on Great North Road, including cutting her hair, breaking her fingers and sexually violating her.
Jones, Torrance and Black then drove the victim to the Dome Valley, where they bashed her head at least seven times with a hammer and left her to die on a dirt road just off State Highway 1, prosecutors say.
The trial continues.
- AAP