The ex-husband and former in-laws of a slain Hong Kong model were detained on Monday on charges in her killing after police found body parts in a refrigerator and a pot.
Choi is believed to have had financial disputes involving tens of millions of Hong Kong dollars with her ex-husband and his family
Her case is one of the most shocking killings Hong Kong has seen since 2013
The case hearing is adjourned to May
WARNING: This story contains graphic details of crime that may disturb some readers.
Ex-husband Alex Kwong, his father Kwong Kau and his brother Anthony Kwong were charged with murdering model Abby Choi a day earlier.
Alex Kwong's mother, Jenny Li, faces one count of perverting the course of justice.
None of the four were granted bail.
Choi, a 28-year-old model with more than 100,000 followers on Instagram, disappeared on February 21, according to a report filed later with the Hong Kong Police.
Loading Instagram content
Her last post was February 19, featuring a photo shoot she had done with fashion magazine L'Officiel Monaco.
On Friday, police found her dismembered body in a refrigerator in a house rented by Kwong Kau in Lung Mei Tsuen, a suburban part of Hong Kong about a 30-minute drive from the border with mainland China.
On Sunday, authorities discovered a young woman's skull believed to be Choi's in a cooking pot that was seized from the house.
Officials believe that a hole on the right rear of the skull is where the fatal attack struck her.
Choi had financial disputes involving tens of millions of Hong Kong dollars with her ex-husband and his family, police said earlier, adding that "some people" were unhappy with how Choi handled her financial assets.
Choi's friend Bernard Cheng said she had four children: two sons ages 10 and 3, and two daughters ages 8 and 6.
Kwong, 28, fathered the elder two, and her current husband, Chris Tam, was the father of the younger children.
Mr Tam said he was very thankful to have had Choi in his life and praised her for being supportive, friend Pao Jo-yee relayed in a Facebook post.
"When Abby was alive, she was a very kind person and always wanted to help people," he was quoted as saying in the post.
"I feel anyone who had a chance to be her family or her friend are blessed."
Ms Pao, who is married to Mr Cheng, told The Associated Press that she has known Choi for over seven years.
"She was the type of person that wouldn't have enemies," she said.
Mr Cheng said Choi had very good relationships with her family, and would travel with the families of her current and former husbands together.
Choi's current father-in-law is one of the founders of a famous Hong Kong chain of Yunnan rice noodle shops, local newspaper The Standard reported.
The gruesome killing of Choi has gripped many in Hong Kong and across the border in mainland China, as the self-governed southern Chinese city is widely considered safe with a very low level of violent crime.
Her case is one of the most shocking killings Hong Kong has seen since 2013, when a man killed his parents and their heads were later found in refrigerators.
In another famous 1999 case, a woman was kidnapped and tortured by three members from an organised crime group before her death.
Her skull was later found stuffed in a Hello Kitty doll.
The hearing of the murder case was adjourned to May.
AP