A box containing the remains was discovered by a cleaning crew that was contracted to clean up the rental property after its tenant was evicted the week before in late September.
"There has been nothing previously reported to police linking the brothers to Montana, and it is not known at this time if the remains are from related siblings", state police said in a statement.
The remains are now undergoing DNA testing in Washington D.C., which could take several weeks. They contacted Missoula police and shared their theory that the bones may belong to Tanner, Alexander and Andrew Skelton, three brothers who went missing seven years ago at the ages of 5, 7 and 9.
The bones and teeth were of modern age and belonged to children who were 5 to 8 years old, 6 to 10 years old and 2 to 4 years old when they died, an anthropology professor at the University of Montana determined.
The boys' father John Skelton is serving a 15 year prison sentence for unlawful imprisonment. Welsh says there is a person of interest they'd like to talk to about the case, but emphasized that person is not being considered a suspect. It's unclear if there will be answers any time soon.
According to the court filing, a city residential housing code compliance officer told police about a man - his name had been redacted from the document - who had "illegally occupied the backyard of the property past year".
On Nov. 26, 2010, the day after Thanksgiving, the boys' mother, Tanya Skelton, told Morenci police Officer Ryan Hillard that her husband, John Skelton, was supposed to bring the children back to her. Zuvers told a Detroit TV station last month on the seventh anniversary of the boys' disappearance.More news: Winter weather advisory, more snow on the way
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The brothers were last seen at their father's house the day after Thanksgiving 2010.
Skelton insisted that he gave the boys to a group to protect them from their mother. The boys' father was arrested and a massive search began.
Zuvers said she's heartbroken that her sons haven't been found. She said a million questions are running through her head.
"It's so hard to imagine them hurting for me and not being able to do anything about it", she said.
Once available, the results will be compared with DNA collected in the case of Andrew, Alexander and Tanner Skelton.
Despite the passage of time, Morenci hasn't forgotten the missing brothers. "I hope at this point it is just some kind of closure". "The thing is, there are missing children all over the world". Missoula police then reached out to MI police.