LAYTON -- Heidi Christensen hopes her 13-year-old son will walk through her door soon.
Right now, the Layton woman has no idea where Daniel Christensen is.
Daniel had been living with his father and stepmother, Ken and Roz Newell, just outside of Great Falls, Mont., since April.
On Sept. 17, Daniel, who is 5 feet 7 inches tall and weighs about 110 pounds, packed two backpacks, put on a blue hoodie with white stripes and a new pair of black-and-red FuBu shoes and headed out the door, Ken Newell said.
Christensen said she sent Daniel to live with his father in April. He had lived with his mother for 10 years in the Layton/Syracuse area until he moved in with his father.
Both Christensen and Ken Newell said Daniel has never run away before.
"He was into a lot of trouble here, so I thought it would be best for (Daniel) to go live there for the school year," Christensen said. "But I have this gut-wrenching, sad feeling inside."
Christensen said her son is smart and resourceful. Daniel knows he has family members who live between Great Falls and Layton.
"But he has not contacted anyone," Christensen said. "I'm afraid (the police) are going to find him in a shallow grave."
Daniel's father, Ken Newell, is a truck driver who left on Sept. 16 for a four-day trip.
On the day Daniel left his home, Roz Newell was at a doctor's visit. She left Daniel in the care of a friend, Ken Newell said.
Roz Newell realized as soon as she got home from the doctor's office that Daniel was missing. That is when she and Ken called the Cascade County Sheriff's Office.
"They just don't seem too concerned about it," Ken Newell said.
Calls to the Cascade Sheriff's Office were not returned on Monday.
Ken Newell said the sheriff's office has listed his son as a runaway and not as a missing child.
The couple, along with friends and family members, have posted fliers at most truck stops in Montana, Idaho and now in Utah.
They have also posted information on Facebook.
Newell received a phone call from a woman who said she saw a boy matching Daniel's description at a Walmart in Missoula, Mont., on Sept. 17, with a man in his late 40s or 50s, who had long gray hair and a long gray beard.
"That is 170 miles to the west of us," Newell said.
Another person contacted the Newells to say a boy was with an older man in Bonner, Mont., on Sept. 19.
However, a phone call Newell received at 9:30 p.m. Sunday has him and Christensen frantic.
"It came up as a private number and I answered it," Newell said. "Then, there was a delay connection and this man's voice. He said, 'Your son is dead.' "
Newell contacted the sheriff's office and his cellphone carrier. So far, there are no leads on who made that phone call.
"I can't function," Newell said. "I need to find my son."
Anyone with information about Daniel can call Ken Newell at 806-395-0979 or 406-231-2766, or the Cascade County Sheriff's Office at 406-454-6846.