Professor Peter Beale and Dr Abdulhay Munshi were released from police custody.
JOHANNESBURG - Friends and family of slain Doctor Abdulhay Munshi are demanding answers.
They say they have not received any information on the progress of the investigation into his murder.
Munshi was gunned down in Orange Grove last month.
He was out on bail on a culpable homicide charge.
The doctor was charged along with Peter Beale in relation to the death of Carnilinx Tobacco COO Mohammed Sayed's 10-year-old son.
His family says they're concerned the case will disappear.