According to Mushwana, the family's lawyer, Kenny Oldwage, said Carl had been involved in a car accident in which "a woman motorcyclist sadly lost her life".
He will appear again at the end of next month.
Oscar Pistorius was released on bail on Friday and Carl was seen driving into the home of their uncle Arnold early on Sunday in Waterkloof, an affluent suburb of Pretoria, the nation's capital, where Oscar is now staying.
The problems surrounding his older brother Carl are the latest twist in a case that has transfixed South Africa and much of the world.
Carl has always been close to Oscar but was notably absent when their uncle Arnold, flanked by Oscar's sister Aimee, read out a first reaction to the shooting on 17 February even though he was also on the premises.
Source: APTN
