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PRETORIA, South Africa (AP) - South African police say the lead investigator in the case against Olympian Oscar Pistorius faces attempted murder charges in an October 2011 shooting.

Police Brig. Neville Malila said Thursday that detective Hilton Botha is scheduled to appear in court in May on seven counts of attempted murder. Malila says Botha and two other police officers fired shots while trying to stop a mini-van in the incident.

On Wednesday, the prosecution case against Pistorius began to unravel with revelations of a series of police blunders and Botha's admission that authorities have no evidence challenging the double-amputee Olympian's claim he killed his girlfriend accidentally. Pistorius faces a charge of premeditated murder.

PRETORIA, South Africa (AP) - Police say they found two boxes of testosterone and needles in the bedroom of Oscar Pistorius, the Olympian who has been charged with murder in the shooting of his girlfriend.

Detective Hilton Botha made the revelation Wednesday in testimony at the bail hearing for the athlete charged with premeditated murder in the shooting death of his girlfriend, Reeva Steenkamp.

The discovery raises the possibility that the double-amputee Olympian and Paralympian might have been using performance-enhancing substances.

Pistorius became the first Paralympian runner to compete at the Olympic Games in London last year.

Pistorius, 26, has insisted he shot the 29 year old Steenkamp by mistake, fearing there was an intruder in his gated and guarded luxury complex in the capital, Pretoria.

PRETORIA, South Africa (AP) - A South African prosecutor charges Olympian Oscar Pistorius with the premeditated murder of his model girlfriend.

The prosecutor said Tuesday that Pistorius shot 29 year old Reeva Steenkamp four times through the bathroom door of his home in a guarded and gated complex in the South African capital, Pretoria. Prosecutor Gerrie Nel told the court the door had been broken open.

The family of the 26 year old Paralympian and Olympic athlete says police evidence will show there should be no murder charge in the Valentine's Day shooting.

Pistorius, in a gray suit, blue shirt and tie appeared grim and solemn in court. He nodded after the chief magistrate asked if he was well.