Oscar Pistorius's Bail Hearing: Prosecutors Argue Premeditated Murder

And now, we head off to south africa and the big twist day in the case against olympian oscar pistorius. At his bail hearing, the prosecution was under pressure, backing away from a claim about... See More

And now, we head off to south africa and the big twist day in the case against olympian oscar pistorius. At his bail hearing, the prosecution was under pressure, backing away from a claim about steroids near his bed. Abc's bazi kanani, back on the story for us. Reporter: Stoic, oscar pistorius back in court today, as prosecutors argued he was too much a flight risk to grant bail, showing blueprints and explaining what happened the night he shot his girlfriend, model reeva steenkamp. Pistorius had said they were both sleeping when he woke, heard a noise, grabbed his gun from under the bed and rushed into the bathroom. But prosecutors say pistorius would have had to cross the bed to get to the bathroom and should have noticed steenkamp was not in it. And they say this is key -- they intend to use ballistics to show he was already wearing his prosthetic legs when firing his gun -- hoping to disprove his testimony that he woke in the middle of the night and rushed to confront an intruder without taking time to put on his prosthetics. Hear, the prosecution has a very critical piece of evidence that could determine whether his story was accurate or not. Reporter: But in a series of missteps, prosecutors revealed the witness who claimed to hear yelling was up to six football fields away, and backtracked from claims they found needles and testosterone in the house, saying test results aren't back yet. Oscar will survive. He will have a tough time going forward. But he's a survive var. Reporter: Bazi kanani, abc news, pretoria, south africa.