Thời gian đăng: 04/03/2014 15:33
Mr Pistorius has pleaded not guilty at the start of his trial for the murder of his girlfriend Reeva Steenkamp.
He shot dead the 29-year-old model and reality TV star at his home, saying he mistook her for an intruder.
The neighbour, Michelle Burger, said cries for help were followed by shots.
"She screamed terribly and she yelled for help. Then I also heard a man screaming for help. Three times he yelled for help," Ms Burger told the high court in the capital on the first day of the trial.
She said she called security and then heard four gunshots.
The arrest of the national sporting hero astounded South Africa.
The 27-year-old double amputee won gold at the London 2012 Paralympic Games and also competed at the Olympics.
Credibility questionedFor the first time in South Africa, parts of the trial are being televised live, although Ms Burger's testimony, in Afrikaans, is being relayed in audio.
Some witness testimony is being excluded from TV broadcasts, although audio of the entire trial is being broadcast.
The court has been briefly adjourned on the second day as there are concerns that her face may have been shown on television as questioning began on the second day of the trial.
The BBC's Andrew Harding in court says defence lawyer Barry Roux began his remarks by outlining what he would focus on with Ms Berger's testimony today: Her credibility and reliability.
On Monday, Mr Pistorius pleaded not guilty to all charges, including the "wilful and intentional murder of Reeva Steenkamp" as the trial began.
Europe's premier motor show revs its engines this week, so expect the usual swagger from an industry that knows all about marketing hype.