CNN  — 

A sheriff’s department dispatch log reveals new information about the night that missing Wisconsin teenager Jayme Closs’ parents were found dead – including that a 911 call appeared to have come from her mother’s cell phone and that the door to the family’s home had been kicked in.

Authorities have been searching for Jayme Closs, 13, since early Monday, when a mysterious 911 call led deputies to discover that her parents had been shot dead at the family’s home in northwestern Wisconsin’s Barron County.

Authorities said they don't believe Jayme Closs ran away.

Investigators say Jayme apparently vanished just after the shootings and is in danger. An Amber Alert was issued for her Monday, and the FBI has added her to its online list of kidnapped or missing people.

“We believe Jayme was in the home at the time of the homicides and we believe she’s still in danger,” Barron County Sheriff Chris Fitzgerald said this week.

The investigation began when someone called 911 shortly before 1 a.m. Monday. No one on the line talked to the dispatcher, but the dispatcher could hear a disturbance, authorities said.

Deputies responded about four minutes later and found Jayme’s parents, James Closs, 56, and Denise Closs, 46, shot dead in their home outside the small city of Barron – and Jayme was nowhere to be found, authorities said.

A city of 3,400, Barron is about 75 miles northeast of Minneapolis.

A dispatch log that the Barron County Sheriff’s Department released Friday offers a few new details from that night:

• The dispatcher “could hear a lot of yelling” during the 911 call.

• The call was “pinged” to the Closs’ home. When the dispatcher called the number back, a voicemail greeting indicated that the phone belonged to Denise Closs.

• A responding officer found “the door has been kicked in.”

• The family dog was there when deputies arrived, and was eventually taken to a relative’s home.

The log does not indicate who made the 911 call, who was yelling or what was being yelled.

Closs’ parents were shot and their deaths have been ruled homicides, Fitzgerald said Wednesday. No gun was found at the scene, he said.

Investigators believe Jayme was at home during the shooting based on details from the 911 call and evidence from the home, Fitzgerald said.

“Is it a random attack or a targeted attack? I don’t know that answer,” Fitzgerald told reporters. “That’s why those leads are so important.”

Volunteers scour the area

Volunteers and law enforcement combed the side of a highway on Thursday looking for evidence in the disappearance of a missing Wisconsin teenager whose parents were found dead in their home this week.

Hours earlier, Fitzgerald asked for 100 volunteers to help in the routine search for evidence that could be related to the case as the search for Jayme Closs entered its fourth day.

The Barron County Sherriff’s Department has received more than 1,000 tips for missing teenager Jayme Closs, according to a news release on the department’s Facebook page. Officials are asking the public to come forward with any information they may have about the Closs family and to remain vigilant in watching the behavior of others, as a change in normal behavior could lead police to additional tips, according to the release.

But the sheriff said he has a “100% expectation that she’s alive.”

An Amber Alert was issued Monday for Jayme and several law enforcement agencies have joined the search.

Motive in parents’ death is unclear

Deputies are also trying to solve the killings of Jayme’s parents, James Closs, 56, and Denise Closs, 46, in the small city of Barron.

It's not clear how long James and Denise Closs had been dead when their bodies were discovered Monday.

On HLN’s “Crime & Justice” Wednesday night, Fitzgerald told host Ashleigh Banfield that deputies had recovered the cell phone from which the 911 call was made.

“They are the experts in breaking down 911 tapes, looking at our phones and taking care of all evidence in that manner,” he said.

Joan Smrekar, who lives next door to the Closs home, told Banfield she heard two shots a couple of seconds apart just after 12:30 a.m. Monday.

“It was just, ‘bang’ and ‘bang,’” Smrekar said.

Jayme Closs is 5 feet tall, weighs 100 pounds and has green eyes and blond or strawberry blond hair, the sheriff’s department said. Anyone with information can call the tip line at 1-855-744-3879.

CNN’s Nicole Chavez, Amanda Watts, Holly Yan, Carma Hassan, Keith Allen, Darran Simon and Sheena Jones contributed to this report.