Abby Choi's murder trial: ex-bro-in-law says Alex Kwong killed Choi

Abby Choi's murder trial continued today at the High Court with a stunning development.

While testifying, Choi's ex-brother-in-law Anthony Kwong said it's his younger brother, Choi's former husband Alex Kwong, who killed the socialite.

Day 35 of the trial.

Defendant Anthony Kwong -- Choi's former brother-in-law -- continued to take the stand.

Questioned by the defense lawyer on whether he killed Abby Choi, he denied it.

The defense lawyer pressed on and asked if he knew Abby Choi would be hurt -- and killed that day and if he knew Choi would be attacked in the car.

Anthony Kwong denied knowledge of all these.

But when asked if he knew who killed Choi, Kwong fell silent for a few seconds before nodding.

The judge reminded him to answer in words.

After staying silent further for more than 10 seconds -- he said, "My younger brother".

That's Alex Kwong -- the victim's ex-husband.

Anthony Kwong choked back tears. Their father Kwong Kau also cried -- Alex Kwong appeared calm at the time.

On the afternoon of the incident, Anthony Kwong drove a white seven-seater at Choi's request to take her from Kowloon Tong to Kadoorie Hill then to pick up her daughter at school.

After picking up Choi, Anthony Kwong told her that her ex-husband Alex Kwong would join them.

Anthony Kwong took the driver's seat with Abby Choi seated right behind him, and Alex Kwong next to her.

He added the passenger windows have blackout tape -- curtains were always drawn close.

During the ride, Abby Choi and Alex Kwong spoke in Hainanese, which he couldn't understand.

Choi began to scold Alex Kwong.

At around 2:45 pm the car passed through the Lion Rock Tunnel, Choi's tone became even more agitated.

When reaching the Palazzo around Sha Tin and Fo Tan, Anthony Kwong said he felt his seat was kicked from the back.

He explained they were on the highway at the time, his view was blocked by the seat cushion when looking back.

He believes that Alex Kwong was on top of Choi, who was lying on the car's interior floor.

He said he heard Choi's voice faintly -- as if someone was "choking her."

He added he "couldn't think of anything" and could only keep on driving but noted that Alex Kwong was on top of Choi for about one and a half minute.

Anthony Kwong described that he was unable to communicate with Alex Kwong after the incident, so he called their father Kwong Kau to seek help who asked them to wait for him at the Tai Mei Tuk public car park.