A police search of three Sydney rubbish dumps is yet to uncover any clues to help investigators hunting for the killer of nurse Michelle Beets.
Ms Beets, 57, was stabbed to death on the front verandah of her Chatswood home last Tuesday night.
Police received information on Tuesday suggesting the killer may have dumped evidence in a Chatswood bin the day after the attack.
More than 50 police officers spent yesterday sifting through garbage at tips in Artarmon, Lucas Heights and Eastern Creek.
Detective Acting Superintendent Mick Sheehy says there is about 300 tonnes of rubbish to comb through.
“At this stage I can say there has been no items located which we can suggest are connected to this crime,” he said.
“I’m not going to speculate or comment on what items it is we are searching for.”
Detective Sheehy said the search will continue throughout the night.
Police have described Ms Beets’s murder as callous and vicious.
A funeral for the Royal North Shore Hospital emergency nurse is expected to be held later this week.
Detectives have been looking for a man seen running from the scene with a green hooded top and a backpack. So far nobody has been arrested.
Anyone with information can contact police via CrimeStoppers on 1800 333 000.