5 years in gaol, but he is eligible for parole in just 10 months. Not being party to all the evidence, I have no idea if this is fair or not.
South Africa is violent country and he probably had to react in great haste. In the calm of the day and thousands of miles away it is too easy to say, "he should not have shot through the bathroom door", but I don't know how I would have reacted in a similar situation.
Sounds to me like he was lucky to get such a lenient sentence.