Oscar Pistorius Trial: Everything You Need to Know About the First Week

Blade Runner has sobbed, shaked, covered his ears during grisly testimony.

March 7, 2014— -- At the end of the first week of the Oscar Pistorius murder trial, the court had heard explosive testimony from neighbors, first responders and a scorned ex-girlfriend, painting a picture of a paralympian who was careless with guns.

The trial also marked the first time Pistorius, 27, and the family of his slain girlfriend, Reeva Steenkamp, 29, had come face to face since the model was killed Valentine's Day morning last year.

The Blade Runner has sobbed, covered his ears and hung his head as witness after witness has testified about the night he shot his girlfriend. Pistorius said he mistakenly believed she was an intruder.

Michelle Burger, whose bedroom is 580 feet from Pistorius' home according to the prosecution, was the first witness grilled by the prosecution and defense.

The university lecturer told the court she heard a woman's "blood-curdling screams" the night of the shooting.

Burger testified she heard one shot fired and then a pause, followed by three rapid shots thereafter, suggesting Pistorius stopped shooting before he fired once again at his girlfriend.

Pistorius' attorney, Barry Roux, was aggressive at times as he tried to poke holes in Burger's story. He suggested the female she heard screaming was actually Pistorius, who he said "screams like a woman" when he's nervous.

Read More: Oscar Pistorius and the 'Screams Like A Woman' Defense

Perhaps the most evocative testimony of the week came from Johan Stipp, a radiologist, who testified that he went to Pistorius' house after hearing shots and screams early Valentine's Day morning last year.

Stipp said he noticed a wound in Steenkamp's right thigh, in her upper arm and in the right side of the head, and there was brain tissue around the skull.

As Pistorius listened to Stipp's testimony, he shook slightly as he sobbed, his hands covering his ears.

The athlete knelt by his girlfriend's side, praying, Stipp testified. "Oscar was crying, saying 'Please let her live.' He was saying he would dedicate his life to God if she will only live," Stipp said.

Read More: Oscar Pistorius Prayed 'Please Let Her Live,' Witness Testifies

Pieter Baba, a security guard in Pistorius' luxury gated community, testified today that he called the athlete after getting reports of shots fired.

While the emotion of the night of the shooting took center stage at the murder trial, Pistorius' dirty laundry was also aired when his scorned ex-lover took the stand.

Samantha Taylor broke down and cried as she talked about the paralympian's obsession with guns and the reasons their relationship failed.

"He cheated on me with Reeva Steenkamp," Taylor said.

Pistorius' ex-girlfriend was called to testify about an incident in which he allegedly fired a bullet through an open sunroof of a car.

In testimony earlier this week, a friend said Pistorius accidentally fired off a gun in a restaurant about a month before the killing, then convinced another member of the dinner party to take the blame.

Pistorius' murder trial will resume on Monday. With less than 10 percent of the witnesses on the list already having been called, it is expected the trial will last several weeks.

If Pistorius is convicted of murder, he could face 25 years in prison before he is eligible for parole.

Read More: Oscar Pistorius Verdict in Hands of One Judge, Not a Jury