CEDAR RAPIDS - Grand jury testimony involving the family of a slain 5-year-old girl will continue today.

Lindsey Christie of Waterloo, the stepmother of Evelyn Miller, said she was subpoenaed to testify this morning. Her husband, Andrew Christie, Evelyn's father, testified before the grand jury in October in matters not directly related to the girl's death.

Evelyn was reported missing from her mother Noel Miller's home in July. Her body was found in the Cedar River on July 6. There have been no arrests in the homicide case.

In a separate investigation, though, Miller's live-in boyfriend, Casey Frederiksen, 26, was charged in September with one count of possession of child pornography. A federal grand jury indicted Frederiksen.

Federal public defender Jane Kelly, Frederiksen's attorney, said in court documents the Assistant U.S. Attorney would seek additional charges against Frederiksen and could file by Thursday.

Lindsey Christie said she didn't spend much time with Frederiksen so she isn't sure what information she will be able to provide.

"I don't know what they would be asking me about him," she said.

Kelly's motion also said the prosecution expected to call more grand jury witnesses and had already called eight witnesses. Among the eight were Andrew Christie's brother, Jeremiah Christie, and members of Frederiksen's family.

Jeremiah Christie, who testified before the grand jury that charged Frederiksen, was called again in October. He said questions both times in court centered around Frederiksen's behavior and his computer.

According to court documents relating to the pornography charge, Frederiksen owned a computer hard drive with more than 1,000 images depicting children engaged in sexual acts. Some of the images and videos were graphic representations of adults sexually abusing children.

Federal court documents maintain Frederiksen concealed the hard drive in garbage bags and gave the equipment to a neighbor and that he admitted to a U.S. Postal inspector the drive was his.

Contact Jessica Miller at (319) 291-1581 or jessica.miller@wcfcourier.com.