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The hug was immediate and unconditional. The trust was not.

With six days elapsed since Lori Hacking went missing and many questions yet to be answered about Mark Hacking's actions on the day he reported his wife was gone, Hareld Soares, the missing woman's father, said Saturday he is not prepared to accept his son-in-law's claims of innocence.

"If he knows anything, he needs to come out and tell us," said Soares, who met with Mark Hacking on Friday evening. "My faith in him has to be restored because right now I don't believe him."

"We hugged. We said we loved each other," Soares said. "I told him, 'I have compassion and love for you.'

Soares declined to elaborate on the conversation he had with the only individual named by police as a "person of interest" in his daughter's disappearance.

"It was a private conversation," he said.

Thelma Soares also met with Mark Hacking, a 28-year-old psychiatric ward orderly, who remains hospitalized following what family members described as "a breakdown" on Monday evening at a Salt Lake City hotel.

The missing woman's mother said she wanted to know why her son-in-law lied about graduating from college and getting accepted to medical school in North Carolina. Ross Williams, a friend of Hacking's, has said he got an invitation to the commencement, but that Hacking had said he was ill that day.

"I asked him, 'Why didn't you know that my love for you was not conditional on your becoming a doctor?' " Thelma Soares said. 'Don't you know I love you because you are Mark and because of the way you have treated Lori all these years?'

Lori Hacking, 27, who is reportedly five weeks pregnant, was last seen by neighbors and friends at about 8:30 p.m. on July 18. Mark Hacking reported his wife missing at 10:49 a.m. the following morning, saying she had gone jogging at Memory Grove Park and never returned. Mark Hacking told police he found her car at the park.

Police said Friday they have no proof that Lori Hacking ever arrived at the canyon that morning. They did not provide any explanation for reports that, minutes before Mark Hacking called to report his wife was missing, he was in a South Salt Lake furniture store purchasing a new queen-sized mattress.

On Saturday, police responded to a gas station and car wash near the furniture store and retrieved a clump of hair from a Dumpster after receiving a call from a person who had found it, said police Detective Phil Eslinger.

Police have no way of knowing whether the hair is related to Lori Hacking's disappearance, Eslinger said. "We are looking into everything."

He said the hair was dark, but had no further description.

Mark Hacking's parents, meanwhile, did not say whether they questioned their son about his actions on the morning his wife went missing, when he reportedly was in the South Salt Lake furniture store.

"The first question is, 'Where is Lori?' " said his brother, Lance Hacking, a computer engineer from Austin, Texas. "If I thought there was some missing piece that Mark could fill in related to that question, I would ask him."

Police said they last questioned Mark Hacking on Wednesday and said the Hacking family had been cooperative with their efforts.

In other developments:

l Police angrily disputed a report Saturday by FOX News that traces of blood were found in the Hackings' apartment. Detective Dwayne Baird said items from the apartment are being tested, but the presence of blood has not been confirmed. And, "if it's evidentiary in value, we're not going to discuss that," Baird said.

l Police said Saturday that dogs were used earlier in the week in a search of a local landfill.

l Lori Hacking's case was featured on the national television show, "America's Most Wanted." The show followed the segment with an update on Elizabeth Smart, a Salt Lake City teenager kidnapped from her home in June 2002 and found nine months later.

l A candlelight vigil for Lori Hacking will be held tonight at 9 p.m. at Memory Grove Park (135 E. North Temple) in Salt Lake City. Organizers ask that attendees park at the State Capitol.

l A phone line is set up for people wanting to donate their time, food, supplies or other help. Call 801-205-0038.

About 250 volunteers showed up to search on Saturday. Searches continued as late as 7 p.m., and some volunteers went out on two or three searches, according to staffers at the search center, 142 W. 200 North.

Volunteers are prepared for the possibility of finding a body, coordinators said. They are told to note any unusual smells or sights, and to call 911 if they find anything, said Debbie Adams, who assists with volunteer orientation. One of the most important things volunteers are told is not to touch or disturb anything they find that might have evidentiary value.

"You're searching for a person. She may be alive or dead," said Tim Hollinger, who helps oversee search efforts.

Volunteers are told if they come across Lori Hacking and she needs medical attention, to stay with her and give her nothing but water until she has been evaluated by emergency medical personnel, he said. If searchers find her and she does not need medical attention, stay with her, volunteers are told, because of the need for crime scene processing.

Lori Hacking's family said they continue to be grateful for the volunteer searchers.

"Every time I'm alone, I'm praying for you guys," Hareld Soares said. "I pray that you have the blessings of the Heavenly Father."