In a statement released last week, Kaine Horman said neither his estranged wife or Spicher are cooperating with investigators.
"She has not only been in close communication with Terri but has been providing Terri with support and advice that is not in the best interests of our son," read the family statement, accompanied by a picture of Spicher. "Additional information provided shows that she is refusing to cooperate with law enforcement, she is also going as far as to suggest to others that may have information regarding Kyron's disappearance, not to cooperate as well."
The Oregonian reported that Spicher was spotted by a witness leaving her job for about 90 minutes on June 4, the day Kyron disappeared from his elementary school. She was gone, the paper reported, around the same time the boy is believed to have vanished and that a second witness reported not being able to reach Spicher on her cell phone during that time.
"We implore DeDe Spicher to come forward and cooperate with the investigators," the family's statement continued. "If we find out through the investigation that she caused a delay in us finding our son due to her lack of cooperation, we will pursue civil remedies in this matter."
The family's statement came one day after ABC's Portland affiliate KATU reported that Terri Horman had told Kyron's teachers and classmates that he would be out of the classroom that Friday at a doctor's appointment, giving the school no reason to expect him back after the science fair that morning.
But Terri Horman has been vague with investigators, the affiliate reported, later telling detective she was referring to the next Friday, June 11.
"Clearly even school children were aware that he was going to the doctor that day and they expected him to be at the doctor that day so now after the fact to say, 'I didn't know it was that day, it was another day,' it is weak," former homicide detective C.W. Jensen said.
The school had faced immense scrutiny in the days and weeks after Kryon vanished after Horman told investigators that she last saw Kyron before leaving the fair and only realized he was missing when he didn't get off the bus that afternoon.
"That now gives about a six- to seven-hour window in which no one was concerned about his whereabouts," McCain said, calling the move "carefully orchestrated."
Terri Horman is also being eyed in an alleged murder-for-hire plot in which she allegedly tried to hire a landscaper to kill Kaine Horman. Kaine Horman quickly filed for divorce and fled the family's home with the couple's 20-month-old daughter. He was granted an emergency restraining order keeping Terri Horman away from him and their little girl.
A judge evicted Terri Horman from the family's home earlier this month.
Terri Horman and her attorney have declined to comment on the allegations made by Kyron's parents. Her lawyer, Stephen Houze, said that his client has been receiving death threats and that the media frenzy surrounding the case has morphed into a "witch hunt."