Using an earthmover‚ police forensic services officers moved tons of sand from above a subterranean storm water drain.

Van Rooyen and his girlfriend Joey Haarhoff were accused of a spree of child kidnappings over 30 years ago. They are thought to have abducted and murdered at least six young girls between 1988 and 1989.

The bodies of his victims have never been found.

In 1979 he abducted two girls aged 10 and 13 and forced them to perform sexual acts but released the two a day later in Pretoria.

He was arrested shortly thereafter and convicted on charges of abduction‚ sexual assault and common assault of the girls. He served three years of his four year sentence. Van Rooyen shot Haarhoff before turning the gun on himself when police were closing in on them in Pretoria after one of their victims escaped.

This is a developing story.

- TimesLIVE