SALT LAKE CITY (AP) – Volunteers called off a weeklong hunt for a missing pregnant woman on Tuesday as police, using cadaver dogs, continued their search of a municipal landfill.

The volunteer search for Lori Hacking covered neighborhoods, industrial areas and nearby canyons, beginning soon after Mark Hacking reported July 19 that his wife had not returned from an early morning jog.

The search drew dwindling numbers, however, as Mark Hacking’s actions came under scrutiny – and his credibility became damaged by revelations that he lied to his wife, family and police about being accepted to a North Carolina medical school.

“We learned a lot of things in his life that are not true,” Detective Dwayne Baird said Tuesday. “Medical school was the pinnacle of that deception.”

The nightshift hospital orderly was checked into a psychiatric ward by his family after being found outside, naked, a night after the search for his wife began.

Assistant District Attorney Bob Stott said Mark Hacking, 28, is free to leave the hospital. Hacking did not return a phone message left Tuesday with an administrator at the University of Utah hospital.

Scott Dunaway, the family’s spokesman, said the volunteer search for Lori Hacking could be resumed later with specialized teams or specific tips, and that all-terrain vehicles and helicopters could be deployed as needed.

Dunaway said the decision was not related to the return of police to a municipal landfill Monday night.

Police, who used cadaver dogs and illuminated the landfill with spotlights, found nothing but planned to return Tuesday night. Experts say dogs work better in cool, moist nights or at daybreak than during a hot summer day.

Police have said Hacking was at a store buying a new mattress just before reporting that Lori was missing. Though Baird would not say if police recovered a mattress, he said Tuesday that police “have no need to acquire a mattress.”

Also Tuesday, a defense lawyer hired by Mark Hacking’s family deployed his own team of investigators. D. Gilbert Athay said he has spoken several times to Mark Hacking, but has refused to characterize the conversations.

Athay said Tuesday that defendants – Hacking hasn’t been charged with a crime – deserve the presumption of innocence, adding: “There isn’t a lawyer in town who will say if his client is guilty or innocent.”

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