"We thank the volunteers for their efforts, as the search efforts are still underway", Barron County Sheriff Chris Fitzgerald said in a statement Thursday afternoon.
The Barron County Sheriff's Office said they have received more than 800 tips in relation with Jayme's disappearance, NBC News reported.
Fitzgerald said that deputies arrived at the house within 4 minutes of the end of the call from the residence but found no suspects, no gun and no sign of Jayme, who was there when gunfire rang out.
- A Wisconsin teenager who has been missing since her parents were found dead in their home isn't a runaway and investigators believe she's in danger, the sheriff said.
Shortly before 2 p.m., volunteers gathered and started searching in front of the Closs home off Highway 8 after splitting into two groups - everyday citizens who looked for clues while walking west, and members of law enforcement doing the same heading east from the house.
The couple, aged 56 and 46, were found shot dead in their family home at about 01:00 local (06:00 GMT) on Monday.
But the sheriff said he has a "100% expectation that she's alive".
More than 400 tips have poured in since Jayme disappeared from her Wisconsin home on Monday.
Trump praises Montana congressman who assaulted reporter: 'Never wrestle him'
Greg Gianforte at a rally in Missoula, Montana, and as the president began his speech, he warned the crowd "never wrestle him". President Trump blasted Democrat Senator Jon Tester for the second day in a row -this time calling him out for hypocrisy.
The sheriff said authorities can't say whether the Closses were targeted. "We've received no other threats or anything in the local area to say it was just a random act, but we do not know that answer", he said.
"I'll be honest. I'm struggling with this because I don't have some of those answers that I want to give you", Fitzgerald told reporters.
Community anxiety has heightened since the sheriff announced at a news conference before the gathering that the deaths of James and Denise ruled homicides by a Minneapolis medical examiner. That's why those leads are so important'. No one on the line talked to the dispatcher, but the dispatcher could hear a disturbance, authorities said.
Fitzgerald has said Jayme is not a suspect.
"It was just, "bang" and 'bang, '" Smrekar said.
Fitzgerald said the information had been tweeted by the Miami police directly, without consulting investigators in Barron.
The missing girl is described as 5-feet tall and 100 pounds, with strawberry-blond hair and green eyes.
Anyone with information regarding Closs' whereabouts or who may have had contact with her is asked to contact the Wisconsin Department of Justice Child Abduction Response Team tipline at 1-855-744-3879.