A teenager who was murdered and buried in the backyard of a house in Perth's southern suburbs studied at the same facility as one of his alleged attackers, police say.
Aaron Pajich, who had Asperger's syndrome, was last seen about 9.30am on Monday last week at the Rockingham City Shopping Centre taxi rank where he was due to meet a woman, and a man only known as Daniel.
On Wednesday, police said two women aged 42 and 25 years had been charged with murder after the 18-year-old's body was found buried in a shallow grave under a newly-laid concrete slab in the rear of a residence in Orelia.
Detective Senior Sergeant Dave Gorton of the Major Crime Squad said the women lived at the house, which was searched on Monday night.
"Aaron and at least one of the accused studied at the same educational facility in Kwinana," Det Snr Sgt Gorton told reporters.
Both women are due to appear in the Perth Magistrates Court on Thursday.
