Most people donate old clothes and shoes to their local Goodwill store. But on Friday, someone got rid of a dog and his bed, according to Fulton County Animal Services.

The gentle 1-year-old terrier mix was thrown into a Dumpster behind the Goodwill on Roswell Road, according to witnesses. An anonymous caller reported the abandoned pup to Animal Services, who arrived to find a scared dog and his bed among the trash, a spokeswoman for the LifeLine Animal Project said.

“He was trembling and freaked out,” Karen Hirsch told The Atlanta Journal-Constitution.

The dog got a good bill of health from a veterinarian and tested negative for heart worms, but he does not have a microchip to help track his former owners, Hirsch said. The 48-pound dog, which Animal Services employees named Broham, is gentle and loving and gets along well with other dogs.

But investigators have a big unanswered question: Who left the dog behind?

PETA is offering a $2,500 reward to help find the responsible person, who is expected to face animal cruelty charges.

“Throwing away a defenseless dog like a piece of garbage demonstrates a blatant disregard for others’ suffering,” PETA Senior Director Martin Mersereau said in an emailed statement. “PETA is urging anyone with any information to come forward immediately, before someone else gets hurt.”

Anyone with information about the case is asked to call Fulton County Animal Services at 404-613-0358.

Broham has been up for adoption, Hirsch said. And during April, he can be adopted at no cost during a “Spring into Adoption” promotion, she said. All pets 25 pounds and over are free during April, including their spay or neuter, vaccines and microchip.

All potential adopters will be screened to ensure Broham goes to a good home, Hirsch said. For more information, email adoptions@fultonanimalservices.com.