Calumet County's district attorney says the state crime lab has uncovered "significant" evidence in the disappearance of Teresa Halbach.

The Associated Press reports that the 25-year-old St. John woman was last seen Oct. 31. Her car has been found in an auto salvage yard between Two Rivers and Mishicot.

District Attorney Ken Kratz says the evidence is from Halbach's car. Kratz has been called in to prosecute the Manitowoc County case because the district attorney there wants to avoid the appearance of impropriety.

Avery is a man who spent 18 years in prison for a sexual assault he didn't commit.

The car was found in a salvage yard run by Steven Avery's family. Avery was released from prison two years ago, after serving 18 years for a sexual assault he did not commit. Avery is suing Manitowoc County officials because of the wrongful conviction.

Avery may have been one of the last people to see Halbach, who regularly came to the salvage yard to photograph vehicles for Auto Trader Magazine.

Avery claims he's being set up because of the $36 million lawsuit he filed against Manitowoc County. Despite the search, investigators aren't calling Avery a suspect.

"We continue to seek additional search warrants, additional subpoenas for documents, and additional records that may assist us on what's now become a very large investigation," said Kratz.

About 250 people held a candlelight vigil Monday night in hopes of Halbach's safe return.

Her family spoke to reporters Monday.

"We hope she will come home," said brother Mike Halbach. "At the same time we are preparing for the worst, but we don't know where she is. Until we know where she is, we definitely think she will come home to us."

A police tip led investigators to the salvage yard Saturday, where they found Halbach's Toyota Rav4.

Monday reporters questioned Avery asking, "Do you have any idea how her (Halbach's) SUV ended up on your family's land?"

Avery replied, "You got me. I got a hunch Manitowoc County planted it."

As of Monday, Avery remained at a family cabin north of Green Bay near Crivitz.

Authorities are not allowing him back on the salvage yard property.

Avery said he couldn't go there anyway because police seized two family vehicles and he is without transportation.