This blogger, assuming he's otherwise credible, doesn't source these statements as far as I saw. But even assuming they originally came directly from a credible source it appears that the original source would be the funeral home. The same one that stuffed the body with newspaper also claims they didn't receive the clothes -- although the guy who transported the body signed for them at the crime lab.
~snipped by me
The Monday after his death, the corpse was sent about 150 miles north to the Georgia Bureau of Investigation crime lab near Macon for an autopsy. After it was completed, the body was returned to Valdosta.
The corpse had been moved by Steve Owens, a retired Valdosta police officer who owns a company that transports the deceased. When Owens retrieved the body from the crime lab, he signed a property inventory sheet acknowledging receipt of two white socks, a pair of pants with a belt, black shorts, boxers, and three T-shirts.
Typically, a body is returned to the family with a bag of personal effects clothing, accessories, and anything else found with the deceased at the time of death. That day, Harrington Funeral Home received two bodies from the GBI crime lab. One arrived with clothing. The other body Kendrick's did not. Instead, it came only with a pair of broken headphones.
Somewhere between Macon and Valdosta, Kendrick's clothes had disappeared. The Johnsons believe these items may have contained evidence indicating a physical struggle, giving weight to their suspicion that Kendrick's death was no accident. More importantly, they could have fiber or DNA evidence. Owens, who transported the body, did not respond to requests for comment. As for what the clothing may have shown, the Johnsons may never know.