A teenager who held up a North Carolina lemonade stand for US$17 was still at large today, and authorities said they hoped to track him through surveillance footage and possible DNA and fingerprint tests.
Neighbours were asked to check their home security cameras for possible clues, said Union County Sheriff's Office spokesman Tony Underwood.
He said a camouflage hat and BB pistol found along with a metal cash box was found in some nearby woods and could be checked for fingerprints and DNA.
The 9-year-old lemonade vendor said a teenager wearing a similar hat and a black shirt pointed a black handgun at him and took his cash box on Sunday in Monroe, about 50km southeast of Charlotte.
"We think we are making positive traction" in the investigation, Underwood said.