New court documents, unsealed Friday, give more detail about the gruesome scene of an August double murder in Missoula.

On Aug. 17, a tip led police to believe that two people had been killed in the basement of a home on the 1900 block of Strand Avenue. Missoula police searched the residence and located the bodies.

It took a county coroner nearly a month — through the use of DNA and dental records — to officially identify the victims as 15-year-old Marilyn Pickett and 24-year-old Jackson Wiles.

On Wednesday, Augustus Standingrock, 26, and 23-year-old Tiffanie Pierce pleaded not guilty to charges of deliberate homicide and accountability for deliberate homicide during their arraignment hearings in Missoula County District Court. The pair remain jailed on $2 million bail each.

A search warrant unsealed Friday gives more details about what police found during a sweep of the Strand Avenue home.

Three plastic tubs contained the victims' body parts. A machete, a double-headed ax, a serrated kitchen knife and a steak knife were removed from the home and taken as possible evidence. The kitchen knife had potential bloodstains on it and the steak knife had what may be human tissue on it, according to the search warrant.

Swabs of what is believed to be blood were taken from around the home.

The detective assigned to the case, Stacy Lear, also wrote in the return for the search warrant that 12 bottles of muriatic — or hydrochloric — acid, most of which were empty and some with bloodstains, were recovered from the home, as were three bottles of ammonia.

At the time of their arrest when the home was searched, Pierce was already being investigated in connection with a July home invasion and stabbing on Montana Street. No charges have been filed in that case as of Friday.

Standingrock was out on conditional release after serving a portion of a Department of Corrections sentence in a felony case.

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