John Widmann, who lives a mile from the reserve, told the New York Post, "I walk there all the time and there won't be much of the remains left.
"There's alligators, but the worst thing are the wild pigs," he added. "They're evil animals and will eat anything. Any flesh out in the open will not be wasted.
"There won't be much for the coroner to work on," he went on. "Nature doesn't waste anything."
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Carmine Marceno, a county sheriff, also told the Post that rattlesnakes, moccasins, and alligators were in the area and that the conditions were "treacherous" for law-enforcement officials to analyze.
Authorities said the skeletal remains and other items belonging to Laundrie were discovered only after water in the area receded, The Independent reported.
Laundrie's remains were found after a five-week search in the vast nature reserve.
He had been missing since mid-September, when he went for a hike in the reserve, his parents said. They initially said he went missing on September 14 but later said he vanished on September 13.
The couple had embarked on a joint cross-country "van life" road trip in the summer. Petito's family reported her missing 10 days after Laundrie returned alone to their home in Florida on September 1.
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