Oscar Pistorius 'heartbroken' at seeing Steenkamp body
South African Olympic athlete Oscar Pistorius has told his murder trial he was "heartbroken" when he saw the body of his girlfriend Reeva Steenkamp.
"I crouched down over her... and I checked to see if she was breathing or if she had a pulse," he said.
The prosecution has now finished five days of gruelling cross-examination, which has seen the athlete break down on several occasions.
Mr Pistorius denies murder, saying he mistook his girlfriend for an intruder.
The prosecution says he deliberately shot dead Ms Steenkamp after the couple had had an argument and has suggested he is staging his emotional outbursts.
He faces 25 years to life in prison if convicted of premeditated murder.
Before his cross-examination ended, the court was shown a photograph of the toilet covered in blood where Ms Steenkamp was shot in February 2013.
Mr Pistorius, 27, said that after shooting through the toilet door at what he thought were intruders, he realised he may have mistakenly killed his girlfriend, a 29-year-old model and law graduate.
He said he tried to break down the door with his shoulder, before using a cricket bat, all the time screaming in panic.
But the double-amputee sprinter said he stopped screaming when he finally opened the door and saw the body.
When asked why, he replied, his voice trembling with emotion: "I was heartbroken... overcome with sadness."
Prosecutor Gerrie Nel said the athlete had deliberately killed his girlfriend following an argument.
"You fired four shots through the door whilst knowing that she was standing behind the door. She was locked into the bathroom and you armed yourself with the sole purpose of shooting and killing her," he said.
Mr Pistorius replied: "That is not true."
The athlete has previously said he and Ms Steenkamp had spent a quiet evening together before he woke up on hearing a noise in the bathroom.
After the cross-examination ended, Mr Pistorius' defence lawyer Barry Roux asked a few further questions before presenting to the court the Valentine's card which Ms Steenkamp had got the athlete.
The front of the card reads: "Roses are red, violets are blue..."
Inside, she had written: "I think today is a good day to tell you that, I love you."
Ms Steenkamp was shot dead in the early hours of Valentine's Day 2013 - before they had opened each other's cards and gifts.
Mr Pistorius has now ended his testimony.
The defence called forensic expert Roger Dixon as its next witness.
He told the court that with the light out, the room would have been almost completely dark, despite a couple of LED lights.
This supports Mr Pistorius' evidence.
The court also heard sound recordings Mr Dixon had made - of a cricket bat striking a door similar to that in Mr Pistorius' toilet, and another of gunshots fired through same door.
Mr Dixon seemed to struggle to tell the sounds apart, which the BBC's Pumza Fihlani in Pretoria says the defence will use to cast doubt on what neighbours say they heard that night.
Prosecution witnesses have testified to hearing a woman scream followed by gun shots, but the defence disputes their testimony, saying the only scream came from Mr Pistorius - after he had fired.
Judge Thokozile Masipa temporarily halted proceedings on two occasions on Monday after Mr Pistorius broke down sobbing.
Mr Nel suggested the Olympic sprinter was doing this on purpose when he was unable to answer the prosecutor's questions.
Both prosecution and defence have asked Judge Masipa to postpone the case until 5 May.
Mr Nel said members of his team were engaged in "more pressing" cases, which needed their attention, as well as "personal arrangements" over the Easter holidays.
The defence said the case should still finish on 16 May, as planned. The judge said she would deliver her judgement on this request on Wednesday.
If Mr Pistorius is acquitted of murder, the court must consider an alternative charge of culpable homicide, for which he could receive about 15 years in prison.
He also faces charges of illegally firing a gun in public and of illegally possessing ammunition, both of which he denies.
There are no juries at trials in South Africa, and his fate will be decided by the judge, assisted by two assessors.
Mr Pistorius is known as the "Blade Runner" because of the carbon-fibre prosthetics he uses on the track.
Mr Pistorius said in his statement at the start of the trial that he woke in the early hours and walked on his stumps to the balcony, pulled in two fans, closed the sliding door and drew curtains. He said that shortly before he had spoken to Reeva, who was in bed beside him.
He said he rejected prosecution claims that a witness heard arguing coming from the house before the shooting.
2. Bathroom window×
Mr Pistorius said he heard the bathroom window sliding open and believed that an intruder, or intruders, had entered the bathroom through a window which was not fitted with burglar bars.
"Unbeknown to me, Reeva must have gone to the toilet in the bathroom at the time I brought in the fans," he said.
Mr Pistorius said he approached the bathroom armed with his firearm, to defend himself and his girlfriend, believing Ms Steenkamp was still in bed.
Both sides agree four bullets were fired. Ms Steenkamp was hit three times.
Mr Pistorius said he fired his weapon after hearing a noise in the toilet which he thought was the intruder coming out of the toilet to attack him and Ms Steenkamp.
He said he was in a fearful state, knowing he was on his stumps and unable to run away or properly defend himself.
Mr Pistorius said he rejected claims that he was on his prostheses when he shot at the door.
A witness told the trial she woke to hear a woman screaming and a man shouting for help. She said that after the screams she heard four shots.
Mr Pistorius said he went back to the bedroom after shooting at the toilet door, still shouting for Reeva. Lifting himself up onto the bed, he felt over to the right hand side of it and noticed Ms Steenkamp was not there.
Mr Pistorius said this was when he realised she could have been in the toilet.
5. Toilet door×
Mr Pistorius said he went back to the bathroom but the toilet was locked, so he returned to the bedroom, pulled on his prosthetic legs, turned on the lights before bashing in the toilet door with a cricket bat.
Forensics expert Johannes Vermeulen told the court that the height of the marks on the door caused by the cricket bat suggest Mr Pistorius was on his stumps at the time.
6. Emergency calls×
Mr Pistorius's defence team say he then called security at the gated housing complex and a private paramedic service before carrying Ms Steenkamp downstairs.
A security guard claimed it was the other way round, and he had called Mr Pistorius first after reports of gunfire. However, phone records shown to the court revealed Mr Pistorius called the estate manager at 3:19am, a minute later he called the ambulance service and at 3:21am he called estate security.
A minute later he received an incoming call - estate security calling him back.
According to police phone expert Francois Moller, Mr Pistorius called his friend Justin Divaris a short time later and just after 4:00am he called his brother Carl.