Oscar Pistorius’ Emotional State in Question

Witnesses believe the Blade Runner isn’t faking his emotions in court.
2:08 | 05/08/14

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Transcript for Oscar Pistorius’ Emotional State in Question
half hour with the latest on Oscar Pistorius. Questions in court this morning about his behavior and all of his crying in the courtroom and whether or not it's real or an act. ABC's Matt Gutman, following every move for us, in south Africa. Reporter: Pistorius is not faking it. He cried 80% of the time. Reporter: That, according to a social worker who spoke to Pistorius in a jail cell, the days after he shot his girlfriend, the model reeva steenkamp. He vomited twice. One time, when he came out of court. He just sat down and started crying and crying. Reporter: It was only this week that Yvette asked the defense to testify after hearing criticism that Pistorius has taken acting lessons. Over the past two months, doubling over in court, weeping, wretching into a bucket. I saw a heartbroken man that's suffering emotionally. He said he accidentally shot her. Reporter: And the prosecutor, known as the bull terrier here, gerrie nel, bouncing. He said to you, I accidentally shot her. You know what his version in court was? He thought he was under attack. And that's why he fired. He changed when he spoke to you. Reporter: Earlier, he called out Pistorius' historionics on the stand. A different side of those emotions allegedly on display Tuesday after proceedings. Reeva's friend, Kim myers, accusing Pistorius of walking up to her in court and snapping, how do you sleep at night? Today, the myers family were in court with family friends, mark bachelor, a soccer star here. Their attorney telling ABC news, they found it odd that he cries crocodile tears on the stand and then says something like that to Kim. Pistorius has denied saying anything to myers. And no one else heard it. The trial is really the home stretch right now. What we're seeing is the defense trying to insert a wedge in the prosecution's case by calling to the stand a couple of experts who are re-evaluating the contents in reeva's stomachs and the crime scene that night. But the slugfest of the scientists, something of a

This transcript has been automatically generated and may not be 100% accurate.

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