Halifax Regional Police said they are still securing a scene at a walking trail in Lawrencetown, N.S. as they search for more evidence in the Catie Miller murder investigation.

Police have released three other sites – one in Goffs, one in Sheet Harbour Passage, and another in Lawrencetown – but will not say if they found anything, other than human remains found at one of the sites Wednesday.

Investigators have yet to confirm whether the remains belong to Miller, adding they expect the identification process to take some time. They also haven’t said where the remains were located.

“We have done what we had to do at these scenes,” said Const. Pierre Bourdages. “I can’t comment as to what, if anything, has been located at these scenes.”

Miller, a 29-year-old mother of one, was last in contact with her family on July 15 and reported missing several days later.

Police have ruled her disappearance a homicide and three people are facing charges in the case.

Jason James Johnson, 29, is charged with first-degree murder and indecently interfering with a dead human body. Police have said the second charge refers to altering or affecting the integrity of a body.

His girlfriend, Kelly Amanda MacDonald, 33, of Lawrencetown, N.S., is charged with first-degree murder. The couple’s friend, George Edward Hubley, 30, of Sheet Harbour, N.S., is charged with accessory to murder after the fact.

Hubley is alleged to have helped dispose of Miller’s remains.

Police said MacDonald and Hubley did not know the victim. Johnson and Miller knew each other, but police have not disclosed the nature of their relationship.

A family member told CTV News that Hubley worked as a roofer with MacDonald’s brother and would sometimes stay at MacDonald’s home in Lawrencetown.

Her house is one of four possible crime scenes on which investigators focused this week. The others include a wooded area near the Halifax Stanfield International Airport and Hubley’s home in Sheet Harbour Passage, where forensic officers removed a patch of grass.

MacDonald, Hubley and Johnson are due back in court on Feb. 3.

Meanwhile, Miller’s friends and family are preparing to say goodbye.

Her school friends gathered at a service Friday at Saint Mary’s University to remember the former student.

“She spent three years here and those years were ones where she was able to kind of find her path, find her way, and it needed to be acknowledged. It couldn’t just be forgotten,” said professor Danika van Proosdji.

A memorial service will also take place at 1:30 p.m. Saturday at the Bedford Baptist Church.

In her obituary, Miller is described as a beautiful, intelligent, vivacious woman who was compassionate and “never passed judgment.”

She leaves behind a three-year-old son.

With files from CTV Atlantic's Kelland Sundahl