The parents of missing 7-year-old Kyron Horman pleaded today with the boy's step-mother to cooperate with police and to help "bring Kyron home."
The emotional news conference was the latest indication that stepmother Terri Horman is under increasing scrutiny by those investigating Kyron's disappearance nearly a month ago.
Kyron's mother Desire Young made the appeal to Terri Horman along with her ex-husband and Kyron's father Kaine Horman. Kaine Harmon served Terri Horman with divorce papers this past weekend and has obtained a restraining order against her.
"We implore Terri Horman to fully cooperate with investigators to bring Kyron home," Young told reporters.
Terri Horman has remained out of sight since Kyron vanished June 4 and has maintained her silence in the face of the growing focus by investigators and the media. She instead has hired prominent Portland criminal defense lawyer Stephen Houze and was seen in his company as she returned home Wednesday night.
Young and Kaine Horman were intent, however, on keeping the public interested in the search for their boy.
"We lean on each other. We use Kyron as our strength. We pray each day for resolution and for Kyron," Young said. "Not knowing where he is is the most difficult."
Kaine Horman said, "We miss his toothless smile... that every day happy noise in the house when he's playing."
His mother added, "I want everyone in world to know who Kyron is and what he looks like."
"We are optimistic that Kyron will be found... All of us feel fully confident in investigation," she said.
Police have not named Horman or anyone else as a suspect or person of interest in the case.
Houze has not made any comments yet on his new client's behalf, but Horman herself apparently has lashed back at the suspicion, reportedly leaving comments on the Web site of ABC's Portland affiliate, KATU.
The station says it has verified that it was Horman posting under usernames to agree with supporters and argue with detractors. Horman was the last person to see Kyron alive.
"Wow. Unless you know all the details, the stress, the worry, the pain, you have nothing to speak of," she reportedly wrote on June 10 in response to a story on KATU. "You are merely making assumptions -- you have no facts, details or knowledge to present so please refrain from your accusations."
But a string of events in the month since Kyron vanished have focused attention on Terri Horman, both in the media and among law enforcement.
ABC News has learned that not one, but two 911 calls were placed from the home of Terri Horman and her husband, Kaine Horman, last Saturday, the day Kaine Horman left the family's home with the couple's 18-month-old daughter.
The first call was made Saturday evening and lasted 13 minutes, the caller reporting threats of some kind. The second came in just after 11:30 p.m. and was written up only as a "child custody call."
Two days later, Kaine Horman filed for divorce and was granted an emergency restraining order keeping his wife from him, their daughter and her older children.
The exact reason for the first call has not been released, and police said the call is now part of their case into Kyron's disappearance.