As the search for missing 16-year-old David Grunwald continues, Alaska State Troopers are hoping surveillance footage will reveal new details into his disappearance.

Troopers are asking anyone with surveillance or web cameras in the Palmer and Wasilla area to review footage captured between 6 p.m. on Sunday, Nov. 13 and 11 a.m. the next day. Grunwald was last seen leaving his girlfriend’s house in the Butte area after dropping her off and was expected home shortly after that.

David Grunwald's Bronco. Courtesy Alaska State Troopers

David Grunwald’s Bronco. Courtesy Alaska State Troopers

Troopers are hoping someone’s camera captured Grunwald or his Ford Bronco, which they said “has a dark blue body with a thin tan stripe down the side and matching trim.” The Bronco was found on Nov. 14 on a back trail near Schrock Road, burned inside and out. Grunwald was not with his vehicle, which his family said he was driving the night of his disappearance.

Anyone whose footage may show the missing teen or his SUV is asked to call troopers at 907-352-5401.

Meanwhile, volunteers scoured the Jim Creek area Tuesday, looking for any sign that Grunwald had been there. The effort was spearheaded by Guardian Search and Investigations, an organization that specializes in searches for children and veterans. Guardian Search and Investigations is working pro bono for Grunwald’s family.

“I’d like to see some closure, if possible,” said Guardian Search and Investigations volunteer Andy Romero. “We are trying to help out the family and we know they are looking for it, and it’s got to be a rough time for them.”

Branda Paradise, a private investigator with Guardian search and Investigations, said no solid leads were gathered from Tuesday’s search effort. However, she says ground and air volunteers were able to cover a lot of ground and eliminate areas of interest.

The hunt for clues followed a search on Saturday involving more than 300 people, who focused on the area where his vehicle was found.

An anonymous tip line has been established at 907-290-8999, according to Guardian Search and Investigations.

KTVA 11’s Shannon Ballard contributed to this report.