PORTLAND, Ore. (CBS/KOIN) Kyron Horman's parents told reporters Thursday that not only do they believe that his stepmother Terri Horman knows what happened to the missing boy, but she also tried to have Kyron's father killed.
Kaine Horman filed for divorce June 28 citing his suspicions that Terri Horman is involved in his son's disappearance, which he says were backed up by information from the police department, according to CBS affiliate KOIN.
The affidavit, which was released to the public Thursday, states: "I believe respondent (Terri) is involved in the disappearance of my son Kyron who has been missing since June 4, 2010. I also recently learned that respondent attempted to hire someone to murder me. The police have provided me with probable cause to believe the above two statements to be true."
Along with the divorce filing Kaine Horman also requested a restraining order against Terri Horman which included a provision that she not have access to firearms or ammunition. On July 8 Kaine Horman filed an amendment to the restraining order asking that Terri Horman be legally ordered to move out of their home.
Kaine Horman stated during Thursday's press conference that part of his motivation for the amendment is tied to his hope that Kyron will be found alive. He told reporters that when Kyron is found he wants to be able to bring the boy back to the home he knows, rather than the undisclosed location where Kaine Horman and his 19-month-old daughter are living now.
Kyron's birth mother, Desiree Young, told reporters that she suspected Terri Horman from "the moment [she] got the phone call" informing her of Kyron's disappearance. She said that hearing that Terri Horman later took, and failed, two polygraph tests only confirmed her suspicions.
"I've known her a long time, I know she's lying," Young said. "It is really frustrating that she is not cooperating."
"Everyone knows that Terri took two polygraph tests," Kaine Horman said Thursday. "She [did] not pass those tests."
Kyron's distraught parents pleaded with Terri Horman to tell the police what she knows.
"She needs to do the right thing [and be] honest," Young said.
"Whatever the truth is," Kaine added.