Thelma says Mark told police he had thrown Lori's body in a dumpster. Authorities are still searching the landfill with cadaver dogs for Lori's body, going through about 5,000 tons of compacted garbage.
"This has been very, very difficult," says Thelma, who already has a headstone and plot for Lori. They have also held a memorial service.
"That's the most difficult part," Thelma says about the lack of a body. "This is why we got a headstone—so that we and her friends would have somewhere to go to remember her. And we know that the chances of recovering her body are very slim."