JOHANNESBURG - Witness D at the Madlanga Commission was shot dead on Friday evening.
Marius van der Merwe was gunned down in front of his wife and children at his home in Brakpan.
He testified before the commission last month on allegations of a murder cover-up.
On the South African Morning Soapbox, we ask: Do you believe whistleblowers are adequately protected to help root out criminality?
eNCA reporter Hloni Mtimkulu is on the streets of Johannesburg giving you a say on our soapbox.