Oscar Pistorius is back in the courtroom sitting up straight and appearing alert.
His relatives appear to be confident as the cross-examination of the lead investigator resumes.
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The lorry lost several butane gas tanks as the driver rammed into cars in Barcelona in a dangerous escape attempt halted by police gunfire.
The Gambling Commission said: "Integrity in sport is not a joke and we have opened an investigation to establish exactly what happened."
The zoo had pest controllers bury pellets in the bird enclosure in order to get rid of rats, but they brought the pellets to the surface.