The identities of two of three people sought in connection with the crime have been made public.
Bolhuis posted the request after he released CCTV footage of a gang robbing a business. “Anyone with information regarding these suspects needs to contact us. All the information will be treated with the highest privacy standards,” he said.
Malan was murdered on January 31 in his practice at the Jakaranda Animal Hospital in the Moot area during an armed robbery.
Police said the vet might have been killed by members of a syndicate targeting veterinarian clinics in the province.