It is quite clear that Pistorious was a murderer. He deserves a severe punishment. He can not kill even an intruder.He fired four times and that means, he was determined to take the life of the person he was shooting at.
Pistorious is a celebrity. But there can not be a different law for celebrities. People like Pistorious are dangerous for any society. A developed country like South Africa will be put to shame if they fail to give a strong punishment to Oistorious type of murderer.