PORTLAND, Ore. -- DeDe Spicher, identified as aclose friend of Terri Moulton-Horman, appeared before a grand jury Monday in Multnomah County as part of the ongoing investigation into the disappearance of her step-son Kyron Horman.

Spicher's attorney told NBC Dateline that he would be surprised if Terri was not arrested in the case.

Grand jury proceedings are not open to the public or the media, so it was unknown exactly what Spicher said. However, her attorney did confirm that Spicher was subpoenaed to testify. She did not give any testimony under oath Monday.

Reliable sources told KGW that Spicher was doing gardening work not far from the Horman family home in Northwest Portland on the day Terri's step-son, 7-year-old Kyron Horman, disappeared fromSkyline Elementary. Spicher reportedly left where she was working at 11:15 a.m. on June 4 and returned around 1 p.m.

Spicher's attorney Chad Stavley told NBC Dateline Monday that Spicher had been, and planned to keep, cooperating with investigators.

I would be, frankly, surprised if TerriHorman did not eventually face charges in this case, Stavley said. I'd be surprised if the indictment didn't come down.

The person who owns the house where Spicher lives, who was cooperating with investigators, told police that she called Spicher on her cell phone but she didn't answer, the source told KGW. A person who was working with Spicher,who was also cooperating with investigators, told them of trying to unsuccessfully find Spicher. Both people have told investigators they have no idea where Spicher was during that period of time.

Sources told KGW that police searched Spicher's home last week. Spicher has known Terri and Kaine for about seven years. Last week, Kyron's parents, Kaine Horman and Desiree Young issued a public plea for Spicher to cooperate with police, threatening a possible civil suit if she refused.

Background: Who is DeDe Spicher?

Read: Statement from Kyron's parents

More: Spicher's home & 2 others searched

Read or Share this story: