Police spokesperson Colonel Priscilla Naidu said Pirzenthal then allegedly stabbed his mother and her daughter‚ Sandra Coetzee‚ in the neck.
“Sturdy succumbed to her injury at the scene while Coetzee was taken to hospital for treatment‚” she said.
“Pirzenthal was found dead in his car in the garage. It is believed that he had gassed himself in the car.”
Police have opened an inquest docket and are investigating a case of murder and attempted murder.