PORTLAND, Ore. (CBS/KOIN/AP) The stepmother of Kyron Horman, the Oregon boy who disappeared from his elementary school, was scheduled to take a second polygraph test Saturday, a friend told a local newspaper.
The 7-year-old vanished June 4, and his stepmother has figured prominently in the investigation since then, because authorities say she was the last known person to see him alive.
On Friday, investigators distributed a flier asking if anyone saw his stepmother near Skyline School on the day the 7-year-old vanished, but have not called her a suspect or a person-of-interest
Jaymie Finster, who has known Terri Horman since junior high, told The Oregonian that Horman already took one polygraph test and was scheduled for a second.
Finster said Horman is "tired and frustrated with the intensity of the questioning she's been getting," and that Horman and her husband, Kaine Horman, are both exhausted as the investigation continues into a third week.
The Multnomah County Sheriff's Office declined to confirm the friend's claim and won't say who has or has not been given a lie-detector test.
It's been reported that Kyron attended the school's science fair that day with his stepmother, who says she last saw him walking down the hallway in the direction of his classroom around 8:45 a.m. At approximately 3:45 p.m., Terri Horman called 911, after Kyron did not return home on his school bus.
Police have been tight-lipped about the criminal investigation, but have been searching on Sauvie Island, 10 miles northwest of downtown Portland.
Exactly two weeks since the boy disappeared, police have interviewed hundreds of people, but so far there's been no arrest and no sign of the boy. "We can't release specific information about the investigation because we can't compromise it," Multnomah County sheriff's spokeswoman Lt. Mary Lindstrand told CBS affiliate KOIN. "We will not compromise the investigation."
Anyone with information on the whereabouts of Kyron Horman is asked to call the Multnomah County Sheriff's tip line at 503-261-2847.