There are several good news articles linked in earlier posts in this thread. Here's another one from 2009 with additional details, source link at end:
Lead fizzles in Hang Lee’s 1993 disappearance
Author
By Emily Gurnon | Pioneer Press
PUBLISHED: May 20, 2009 at 11:01 p.m. | UPDATED: November 12, 2015 at 9:25 p.m.
A promising lead in the case of a missing St. Paul teenager fizzled when cadaver-sniffing dogs failed to find human remains in the former Maplewood home of the lead suspect, according to a sheriff’s investigator.
Hang Lee was 17 when she disappeared in 1993. On that day, the Highland Park Senior High School senior and another woman allegedly met with Mark Steven Wallace, then 30, about a job.
After the interview, Wallace dropped the other woman off first, then was supposed to take Lee home. But she never arrived, according to the affidavit for a search warrant filed Tuesday in Ramsey County District Court.
Wallace, 46, grew up in the home at 1736 Furness St. and continued to live there on and off “his entire life,” according to the affidavit.
His mother willed the home to him and his stepbrother. Wallace was forced to move out when the property went into foreclosure in February. At that point, Sgt. Kevin Navara of the Ramsey County sheriff’s special investigations cold case unit got permission from the real estate agent and mortgage company to search it.
Navara said in an interview that the dogs, from the Minnesota Search and Rescue Dog Association, scoured the property on two occasions.
The first time, three separate groups of dogs honed in — one group at a time — on an area on the back northeast wall of the garage, Navara said.
“All three did very well, one after the other, boom boom boom,” he said.
On that basis, he got the warrant to drill holes in the concrete floor of the garage, which was built in 2004.
When the dogs came back for a second search, most failed to indicate an alert for human remains, Navara said. Investigators took nothing from the scene.
Wallace has refused to cooperate. In addition, investigators have tried to talk to the other woman they believe was at the job interview, but she asked for an attorney and has refused to cooperate, Navara said.
“So we’re kind of back to square one again with this case,” he said.
Wallace began getting in trouble with the law when he was a child, Navara said. His criminal history includes “multiple rapes, narcotics, theft and robbery,” according to the affidavit.
Navara said Wallace is in custody in Wisconsin on property crimes charges.
Anyone with information about Lee’s disappearance is urged to call the sheriff’s special investigations unit at 651-266-9560.
SOURCE:
Lead fizzles in Hang Lee’s 1993 disappearance
