Roux is trying to pin down when the lights were turned on because in Pistorius' version of events it was dark and he couldn't see.
Roux asks if Stipp has an exact time for when he saw the lights. Stipp says he only has an exact frame of reference - when he heard the screaming.
Roux is now asking about when Stipp saw the lights on. Stipp says all the house lights were on, including the bathroom lights and then the screaming started.
Judge Masipa asks if the glass was frosted at the time. Roux says yes it was. He wants to know how it was possible to make out if it was a man or woman in the bathroom. Stipp says he isn't sure if it were a man or woman but he definitely saw movement.
Stipp says he saw a man moving from right to left in the bathroom, despite the glass being frosted.
In the gallery a woman wipes a tear from her eye.
Stipp says Pistorius was actively trying to assist Steenkamp by applying pressure onto her thigh wound and clear her airway.
Stipp now detailing Pistorius' emotional state after Steenkamp died. Stipp says he was very distraught and praying. "He definitely wanted her to live," Stipp says.
Roux agrees to let the issue go so he can continue questioning Dr. Stipp. Roux starts referring to "Mr. Pistorius' version."
Nel says they'll deal with the discrepancies between the state witnesses. For now, the state's case is that the shots fired at 3:17 a.m. caused Steenkamp's death.
Roux and Nel are still going back and forth with each other, with Judge Masipa refereeing.
Nel says the state's case is that the shots at 3:17 a.m. killed Steenkamp and that witnesses heard her screaming before those shots. The judge asks for some clarification.
The state's case is that it was Steenkamp who screamed. Roux says that their witness testified that Steenkamp couldn't have screamed due to her wounds.
Stipp maintains that the screams he heard sounded female to him.
Stipp says what if the cricket bat was used to hit the door down before the shots. Roux says that there were bullet holes in the door as well as indentations from the cricket bat and that some of the splinters from the bat hitting the door hit Steenkamp. Roux doesn't miss a beat.
Roux says that the screams Stipp heard after the shots could not have been from Steenkamp since her wounds would've rendered her unable to do so. Roux says that the screams must've come from Pistorius. Nel objects. He says that this is the accused's version of events.
Roux says medical experts told him that Steenkamp would not have been able to scream after the shots. Stipp agrees.
Roux: I don't want to go into graphic details about what you observed about the head wound. It was a devastating head wound.
Roux says he's just trying to point out Stipp's honest mistake about how many shots he heard.
Roux says "I don't want to attack your credibility ... I'm trying to demonstrate that sometimes you have an idea in your mind but that might not always be reliable."
Roux is using Stipp to discredit what the other three ear witnesses heard.
Stipp says the sound of the cricket bat breaking down the door "sounded identical" to gun shots.
Roux is establishing that the gun shots were fired at about 3:17 a.m. - when Stipp was trying to call 911.
Roux: What we know now is that the other witnesses were woken up by gun shots before, then heard the screaming.
Roux is going through Stipp's statement and the sequence of events.
Roux says that Stipp's first statement was stamped by Botha, Stipp says Botha wasn't present when he gave his statement. Roux doesn't know how the stamp got there.
Roux is asking about the statements Stipp gave to the police. He spoke to police twice. Roux wants to know if he spoke to Hilton Botha.
With that, Nel has nothing further for Stipp. Barry Roux begins cross-examination.