Oscar Pistorius has been accused of weeping for himself, not his tragic girlfriend, during another emotional day at his murder trial.
Pistorius broke down several times, leading to court adjournments, as he was asked to explain alleged inconsistencies in his story.
Prosecutor Gerrie Nel put it to Pistorius that Reeva Steenkamp "fled for her life" as Pistorius "shouted and screamed" at her before shooting her dead.
As he began his sixth day of evidence, the athlete was accused of lying in court and using his emotional state as "an escape".
A woman hugs Pistorius as he enters court
Mr Nel told Pistorius: "Today I'm going to prove your version of events is untrue. That you tailored your version, concocted your story.
"Your version is so improbable that it cannot reasonably possibly be true."
Referring to the moment Pistorius shot Ms Steenkamp dead after "hearing a noise" in the toilet, Mr Nel asked: "What is your defence?"
"I heard the noise and I did not have time to interpret it and fired out of fear," Pistorius said.
Mr Nel replied: "You know exactly what you were doing, you fired at Reeva. You fired at her."
Pistorius broke down as he replied: "It's not true my lady."
Mr Nel interrupted: "Why are you getting emotional now?"
"I did not fire at Reeva," Pistorius wept.
After a short break Pistorius returned to the witness box.
Mr Nel said: "I'm going to argue that you got emotional because you got your defences mixed up."
A photograph shows the bullet holes in the toilet door
"No," Pistorius said.
"Getting your defences mixed up - that's why you get emotional," Mr Nel said.
Just before lunch, the prosecutor once again questioned the motivation for an emotional outburst by the defendant.
Responding to Mr Nel's claims he had been "lucky" not to be hit by a ricochet, Pistorius sobbed: "Why would that be lucky, she lost her life, my lady?"
Mr Nel replied: "Now, you are getting emotional again - it's not worth it."
After lunch, Pistorius denied he shot Ms Steenkamp dead as she spoke to him, hiding behind the toilet door.
Mr Nel said: "Reeva would only have been with her right hip at the door if she was standing behind the door talking to you."
He continued: "All the screams and shouts were at her and she fled for her life.
"Why would she be there if she was not talking to you? My case is that he knows that he shot her while she was talking to him."
Reeva Steenkamp was shot in the toilet of Pistorius' home
Earlier, Pistorius raised his voice in the witness box when asked to explain what he had said to the "intruders" in his bathroom on the night of the shooting.
Breaking down into more sobs, he shouted: "I said 'get the **** out of my house, I said get the **** out of my house'."
Pistorius, 27, spoke softly and appeared low in energy as he responded to the prosecutor's questions.
Mr Nel asked: "Today I pick up that you are not sure about things. Is there anything wrong?"
Pistorius replied: "No."
On another occasion, Mr Nel asked: "Is there something wrong with you? You are touching your eyes."
Pistorius replied: "My eyes are sore."
Mr Nel said: "Why are you touching your eyes now?"
The judge then interrupted Mr Nel, to stop his line of questioning.
Pistorius admits shooting his 29-year-old girlfriend dead on Valentine's Day last year - but says he believed that she was an intruder.
This morning, Pistorius denied there had been an argument before the shooting and the model was planning to leave the flat.
Pistorius is surrounded by security as he enters the court
On several occasions, Pistorius was questioned over alleged inconsistencies in his evidence.
The prosecutor focused on Pistorius' court account that he had heard a door closing in the toilet - making him believe intruders may be in there.
Mr Nel said: "There's not a single word of the door shutting in your bail statement, why not?"
"I'm not sure - I don't know why," Pistorius replied.
"It's even more devastating that it's not in your plea statement," Mr Nel continued.
"I don't know why," Pistorius replied.
"It's because you invented it," Mr Nel asserted.
Reeva Steenkamp was a model and minor TV celebrity
Pistorius conceded he "made a mistake" when he said last week that he "whispered" to Ms Steenkamp to stay low on the night of the shooting.
He admitted that he "spoke in a low tone", rather than whispered. Mr Nel accused Pistorius of "tailoring his evidence".
Pistorius replied: "I don't understand why I would be tailoring my evidence by saying 'whisper'."
He was also asked why he had initially said he "heard a noise" on the night of the shooting but later changed that to "hearing a window sliding open".
Pistorius explained: "When my bail was done, I was in a holding cell, I was on medication, I was traumatised - it was not made clear to me that it was exhaustive."
Earlier, the athlete was mobbed outside the court by supporters with white balloons and Christians, playing and singing music.
One of the supporters clung to his hand for several seconds, while another appeared to hug him, as he walked into the high court in Pretoria.
Some held banners which read "Ozzy, we love you" and "hero".
Pistorius denies premeditated murder and illegally possessing ammunition in relation to Ms Steenkamp's death.
He also denies two further counts related to shooting a gun in public on separate occasions prior to the killing.