FROM CNN WIRES:

CNN) - As Oscar Pistorius returned to court Thursday to seek bail, the sensational case took a new turn when police said the lead investigator is facing seven counts of attempted murder stemming from an incident four years ago.

That investigator, Hilton Botha, and several other police officers apparently fired at a minibus they were chasing in late 2009, spokesman Neville Malila told CNN affiliate eNCA. The officers were allegedly drunk at the time, the spokesman said.

They were arrested on seven counts of attempted murder - one for each occupant in the minibus, the spokesman said. They were also charged with using firearms under the influence of alcohol, and all of them appeared in court.

In court Thursday, the prosecutors said neither the state, nor Botha, was aware that he might face attempted murder charges, thinking the case had been dropped.

This morning on "Early Start," CNN legal contributor Paul Callan weighs in on what he calls 'sloppy' police work in the Pistorius case.

READ MORE: Police: Lead investigator in Pistorius case facing attempted murder charges himself

FROM CNN WIRES:

Pretoria, South Africa (CNN) - Sounds of arguing for an hour before the shooting. Blood stains on a cell phone and cricket bat. Boxes of testosterone and needles. Angles of gunfire.

The shape of prosecutors' case against Oscar Pistorius began to come into focus Wednesday as they argued the Olympian charged with killing his girlfriend is a flight risk who should be denied bail.

Police investigator Hilton Botha told the court there's no way Pistorius was acting in self-defense when he shot through the door of a toilet room in the bathroom of his home and killed Reeva Steenkamp.

Pistorius has said he thought he was shooting at an intruder in the early hours of Valentine's Day, but Botha said he believes Pistorius knew Steenkamp was on the other side of the door.

Prosecutors tried to poke holes in Pistorius' story, and defense lawyers fired back: The witness who heard sounds of arguing lives 600 meters (more than 650 yards) away, Botha testified under cross-examination. Pistorius had a legal herbal medicine, not testosterone, defense attorney Barry Roux said. Steenkamp locked the toilet room door when she heard Pistorius screaming for help, Roux said.

With all these new details, how will Pistorius shape his defense? This morning on "Early Start," legal contributor Paul Callan weighs in on the case.

READ MORE: Prosecution argues against bail in Pistorius case

CNN legal contributor Paul Callan on what premeditated murder charges could mean for Oscar Pistorius.

FROM CNN WIRES:

Pretoria, South Africa (CNN) - In an emotionally wrenching hearing Tuesday, a judge upgraded the charge against Oscar Pistorius to premeditated murder, saying he could not rule out the possibility that the track star planned the shooting death of girlfriend.

But the judge said he will consider downgrading the charge later.

Pistorius had been charged with murder for the Valentine's Day shooting of Reeva Steenkamp, and the hearing Tuesday was to determine whether he should be allowed to post bail.

But prosecutors had said they would try to get the charge upgraded. And throughout the proceeding, they hammered away at the possibility that Steenkamp's killing was premeditated. The defense countered by contending Pistorius thought his girlfriend was an intruder.

With the new charge, Pistorius' case for bail may prove much more difficult. The defense must now try to argue that "exceptional circumstances" exist that would justify bail.

This morning on "Early Start," CNN's Robin Curnow reports on what she saw inside the courtroom and the chances of Pistorius being granted bail.

READ MORE: Oscar Pistorius bawls in court, faces charge of premeditated murder

Criminal defense attorney Joe Tacopina weighs in on the premeditated murder charges against Olympian Oscar Pistorius.

FROM CNN WIRES:

Pretoria, South Africa (CNN) - South African sports icon Oscar Pistorius wept uncontrollably Friday when a judge charged him in the killing of his girlfriend on Valentine's Day.

Pistorius' body shook, his head buried in his hands, as he appeared in court over the fatal shooting of his girlfriend, model Reeva Steenkamp, who was found at his home Thursday in an upscale Pretoria neighborhood.

The 26-year-old, nicknamed "Blade Runner," for his Olympic debut last year with artificial legs, was arrested the same day.

This morning on "Early Start," CNN's Errol Barnett reports on Pistorius's court appearance.

READ MORE: 'Blade runner' Pistorius weeps in court over murder charges