Seelan Pillay, 46, a former SA National Defence Force officer, sustained third degree burns and succumbed to his injuries on Sunday.
Four men, including a policeman, were arrested and charged with kidnapping and murder. They appeared in the Verulam Magistrate’s Court on Monday.
Warrant Officer Theagen Naidoo, 45, of Phoenix SAPS, Sadhabivan Reddy, 52, and brothers, Anben Chinsamy, 46, and Sugendren Chinsamy, 30, were arrested at the weekend.
They were remanded to police custody.