A lawyer for the shattered family of Idaho murder victim Kaylee Goncalves said police may need to consider handing over the probe to a more experienced agency.

"If they’re not capable of handling a quadruple murder, if they are in over their heads, then acknowledge that and turn the investigation over to someone who is more versed in handling these matters," Shanon Gray, who represents the Goncalves family, told WHD News Digital. 

But Gray added that the family is hopeful that the Moscow Police Department, with help from the FBI and the Idaho State Police, are thoroughly probing the baffling killings of four University of Idaho students. 

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Steven Goncalves, his wife Kristi Goncalves, and their murdered daughter, Kaylee Goncalves.  (Ted Warren via WHD/Instagram)

"We're hoping they're doing the investigation properly and are optimistic about that," Gray added. "We support the Moscow Police Department."

Goncalves, 21, Madison Mogen, 21, Ethan Chapin, 20, and Xana Kernodle, 20, were stabbed to death Nov. 13 between 3 a.m. and 4 a.m. inside a rental home near campus. 

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Kaylee's father, Steve Goncalves, previously told WHD News Digital that the family had hired Gray over concerns that local police were out of their depth in handling the complex murders.

The victims of the Nov. 13 University of Idaho massacre.  (Instagram @xanakernodle / @maddiemogen / @kayleegoncalves)

The Goncalves family had a meeting with police and the Latah County prosecutor last week to discuss their frustrations and implore officials to communicate better with the victims' families, according to Gray.

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"As of right now the daily updates [from police] are that they have no new information for the family," Gray added.

The attorney said the family is overwhelmed by the loss of their daughter. 

The lawyer for Idaho murder victim Kaylee Goncalves' family, Shanon Gray. He arranged a meeting Monday with officials investigating the quadruple homicide. Screenshot of Zoom interview. (WHD News Digital)

"They're not doing well," he said. "They're just trying to do what they can to help out the investigation but also holding investigators accountable."

The families of Kaylee Goncalves and Mogen, who were best friends, are holding a celebration of life for the student Dec. 30 at Lake City Church in Coeur d'Alene at 3 p.m.

The commemoration, which is open to the public, will focus on family and friends sharing "happy stories" and remembering "how amazing those girls were," Gray added.

Map of Idaho murder victims' activity late on Nov. 12 and early on Nov. 13. (WHD News)

Meanwhile, the Moscow Police Department announced in a press release that more FBI agents have been assigned to the unsolved case since last week.

Authorities haven't publicly named a suspect, and the fixed-blade knife they believe was used in the attack hasn't been recovered. 

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Authorities are asking anyone with information about the incident to call 208-883-7180 or email tipline@ci.moscow.id.us.