The Walt Disney World's Grand Floridian resort hotel is seen where an alligator took a 2-year-old boy as he waded in the waters of the Seven Seas Lagoon on June the 15th, 2016 in Orlando, Florida.
"This is a tough situation", Orange County Sheriff Jerry Demings said Wednesday.
The fact that the body was found intact makes sense, said Jeff Corwin, host of "Ocean Mysteries" on ABC.
Officials will perform an autopsy but the sheriff said he believes "the child was drowned by the alligator". A statement released through a family friend thanked local authorities for their tireless work.
The resort had "No Swimming" signs where the boy was killed at the Seven Seas Lagoon, but did not specifically mention alligators.
Jacquee Wahler says in a statement Thursday evening: "We have closed all of our beaches and have made a decision to add signage, and we are also conducting a swift and thorough review of all of our processes and protocols".
Nick Wiley, executive director of the Florida Fish & Wildlife Conservation Commission (FWC), told CBS News that if a gator "attacks a human, it's mistaken". He said there is a "good chance" one of these alligators attacked the boy.
The beach where the reptile grabbed the child is part of the luxury Grand Floridian resort, across the lake from Magic Kingdom.
Its Orlando resort is the most visited theme park in the world, drawing more than 20 million visitors a year ago.
However, it still spooked visitors in a city built on tourism.