DeDe Spicher, a close friend of missing 7-year-old Kyron Horman's stepmother, has refused to answer questions about the boy's 2010 disappearance.

According to newly released court documents, Spicher cited her Fifth Amendment right against self-incrimination for a deposition earlier this month. She refused to answer more than 100 court questions posed by a lawyer representing Kyron's biological mother, Desiree Young.

The deposition was taken as part of a lawsuit Young filed in June 2012 against Kyron's stepmother, Terri Horman. The lawsuit accuses Horman of kidnapping or hurting Kyron by herself or with help from others. The suit asks a judge to order the woman to return Kyron or, if he is dead, reveal where his remains are. Young is also seeking $10 million, which she has said she would give away.

Kyron Horman was last seen by his stepmother walking to his classroom at Skyline Elementary School in Portland, Ore., on June 4, 2010. When the boy failed to return home later that day, his family called the school and discovered he was missing. Search teams scoured an area spanning several miles, but no sign of Kyron was found. Authorities later reclassified the case from a missing endangered child to a criminal investigation.

In the weeks following Kyron's disappearance, his father, Kaine Horman, obtained a restraining order against Terri, after learning she was allegedly involved in a murder-for-hire plot. He also filed for divorce, citing irreconcilable differences.

According to police, Spicher spent a lot of time with Terri Horman and began staying with her after Kaine Horman filed for divorce. The revelation prompted Young to release a statement describing Spicher as someone who "has been providing Terri with support and advice that is not in the best interests of our son," CNN reported.

KYRON HORMAN PHOTOS: (Article Continues Below)

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  • Kyron Horman

    Kyron Horman was last seen by his stepmother walking to his classroom at Skyline Elementary School in Portland, Ore., on June 4, 2010. When the boy failed to return home later that day, his family called the school and discovered he was missing. Search teams scoured an area spanning several miles, but no sign of Kyron was found. Authorities later reclassified the case from a missing endangered child to a criminal investigation.

  • Desiree Young, Tony Young, Terri Horman, Kaine Horman

    In this June 11, 2010 photo, the family of missing 7-year-old Kyron Horman, from left, Tony Young, his mother Desiree Young, his stepmother Terri Horman and his father Kaine Horman stand together during a news conference, in Portland, Ore.

  • Desiree Young And Terri Horman

    n this June 11, 2010 photo, Desiree Young, left, the mother of missing 7-year-old Kyron Horman, with stepmother Terri Horman.

  • Terri Moulton Horman

    This Oct. 7, 2010 photo shows Terri Moulton Horman entering a courtroom in Portland, Ore. Terri Horman, the stepmother of Kyron Horman, had asked a judge to hold off hearing a suit that says she knows where the boy is. The lawsuit filed by Kyron Horman's biological mother, Desiree Young, asks a judge to order Terri Horman to return Kyron or, if he's dead, say where his remains are. It also seeks $10 million. Investigators have long focused on Terri Horman, although they have not named her as a suspect or filed criminal charges. The suit accuses her of kidnapping Kyron, by herself or with help.

  • Desiree Young

    This Aug. 27, 2010 photo shows Desiree Young, Kyron Horman's biological mother, looking down while making remarks during a news conference, in Beaverton, Ore.

  • Mary Lindstrand And Dave Thompson

    Officers Mary Lindstrand, right, of Multnomah County and Dave Thompson of Washington County set up a photo of missing 7-year-old Kyron Horman, prior to a news conference in Portland, Ore., on June 7, 2010.

  • Missing Oregon Boy, Kyron Horman

    This undated photo provided by the Multnomah County Sheriff's Office shows Kyron Horman.

The search for Kyron was one of the most intense in recent Oregon history and attracted national attention. His parents have held countless vigils, passed out thousands of fliers and issued numerous public pleas, all to no avail.

Terri Horman and Spicher have not been named suspects in Kyron's disappearance, and no arrests have been made.

The newly released deposition in Young's lawsuit quotes Spicher as saying "I'm asserting my Fifth Amendment rights" to 142 questions, including if she knew whether Terri Horman was involved in Kyron's disappearance, if the boy is still alive, and what her activities were on the day Kyron disappeared.

On Monday, Young's attorney, Elden Rosenthal, filed a motion with the court requesting Spicher be made to answer the questions. A hearing date for the motion has not yet been set.

CORRECTION: A previous version of this article incorrectly referred to Desiree Young, Kyron Horman's biological mother, as the lawyer for his biological mother.

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