CEDAR RAPIDS, Iowa (AP) -- The uncle of a slain Floyd County girl said he was questioned for more than two hours about a computer in front of a federal grand jury Thursday.
The computer was in the rural Floyd apartment the child's mother shared with her fiance.
Five-year-old Evelyn Miller disappeared from the apartment on July 1. Her body was found six days later in the Cedar River, about two miles from her home.
Her death has been ruled a homicide, but details about how and when she was killed have not been released. Police have not announced any arrests.
Jeremiah Christie, 24, of Waterloo, told The Des Moines Register that he was called to testify about a five-day period in which he stayed in the apartment,
"Most of the questions they asked me were about the computer, the hard drive and software on the computer," Christie said after his testimony concluded Thursday.
Christie -- whose brother, Andy Christie, of Waterloo, is Evelyn's father -- said he was also interviewed last week by Iowa Division of Criminal Investigation agents.
He said their questions focused on the lifestyles of Evelyn's mother, Noel, and her fiance, Casey Fredericksen, around the time the child vanished.
Authorities refused to comment Thursday on whether the computer is central to the case. Grand jury proceedings are secret.
Federal prosecutors would not comment on whether they've taken over the case or whether Floyd County Attorney Marilyn Dettmer had asked them to step in.
State and federal agents on Sept. 2 searched the Charles City home where Miller and Fredericksen moved after the girl's funeral. Dettmer said the search was part of the investigation but would not comment on what, if anything, was taken from the home.
Court documents that pertain to earlier searches, have been sealed by a judge. A state Department of Human Services file on the child has also been kept secret.
Christie said that police "tore apart" the computer in a search of the Floyd apartment shortly after Evelyn vanished but that they left without the hard drive.
Miller's former neighbor, Tanya Martinez, told sheriff's deputies that Miller gave her a computer hard drive for safekeeping after Evelyn's death, and "freaked out" when she turned it over to authorities in August, according to an investigative report.
Dettmer said on Thursday that "the investigation is still ongoing," but she would not provide details.
Information from: The Des Moines Register, http://www.desmoinesregister.com