Post-mortems on five family members bludgeoned to death in northern Sydney will begin on Monday, as police continue their investigations into the horrific home attack.
Tributes have poured in for the hard-working Lin family who ran the Epping Central Newsagency in Rawson St, Epping, six years after they migrated from China.
A female family member found four of five of her relatives' bodies, including two children, upstairs in the family's secluded Boundary Road home in North Epping on Saturday morning.
Police say the family members, reportedly Chinese-born Min Lin, 45, his wife Yun Li Lin, 43, two sons, Henry aged 12 and Terry nine, and another female relative aged 39, were killed some time between midnight and 9.50am AEST on Saturday.
The bodies of the family have been taken to Glebe morgue, where post-mortem examinations will begin later on Monday to provide formal identification, as well as determine the cause of their deaths.
Police say the examinations will take at least two days to complete.
Police placed a guard at the house on Sunday night, with forensic specialists due to continue their examinations on Monday morning.
Detectives have not ruled out an extortion attempt as the motive behind the apparently calculated killings.
However, they have yet to establish any link between the family's murders and Mr Lin giving evidence of an armed robbery at the Epping Club, opposite his newsagency, earlier this year.
The slayings have shocked the tight-knit northwest Sydney community perched on the edge of Lane Cove National Park.
Police have reassured frightened neighbours in the suburb that robbery was unlikely to be the motive, because nothing appeared to have been stolen during the attack.
