Transcript for Oscar Pistorius Bail Hearing: New Evidence Revealed
We got it done. When that crossed the wires yesterday, there was hosanna. Oscar pistorius, back inside a south african court for the second day of his bail hearing. Stunning details being released by police this morning. And bazi kanani with the latest from south africa. Good morning, bazi. Reporter: Good morning, robin. And a big welcome back to you. In court this morning, the key witness on the stand was the chief investigator in the case against oscar pistorius. He talked about what he found inside pistorius' house, the night his girlfriend was shot. And explains the main reasons prosecutors insist this was murder. Prosecutors say there is no way the shooting death of oscar pistorius' girlfriend, model reeva steenkamp, was an accident. They say forensics suggest that pistorius was in a standing position when he shot the model, who was behind a locked door in a smaller powder room. Prosecutors say they found two testosterone. But prosecutors maintain witnesses heard constant arguing. We have a witness who says she heard nonstop shouting and fighting between 2:00 and 3:00 a.M. Prosecutor gerrie nel. He says another witness saw lights on at the time of the gunshots. Both claims, directly contradicting what pistorius says happened on that valentine's day. When he says, after a quiet night at home, in the pitch-dark, heentally shot steenkamp through a bathroom door, mistaking her for an intruder. And desperately trying to save her when he realized his e. I tried to render the assistance to reeva that I could. But she died in my arms, said pistorius. Prosecutors say ballistic evidence also will show pistorius lied when he said he was not wearing his prosthetic legs when he fired his gun. But that, in fact, he had taken the time to put them on first. Prosecutor nel asked officer boda. You were there. Officer botha. Seems to me down. Nel. Through the top part of the door, not the bottom? Officer botha, definitely. As the details come out, reeva's brother, adam steenkamp, spoke to "good morning america" from his family's home in port elizabeth. We're not focusing on what's happening with oscar at the moment. Reporter: Prosecutors are arguing pistorius should not get bail because between his offshore bank accounts and his home in italy, they consider him a potential flight risk. George?
This transcript has been automatically generated and may not be 100% accurate.