LEESBURG, Fla. -- The body of a woman whose 2-year-old son has been missing for nearly two weeks was found Friday in her grandparents' home in The Villages, according to police.

Leesburg authorities said Melinda Duckett's body was found at a home at 638 Rainbow Lane in the Villages of Lady Lake. Police said the house belonged to the woman's grandparents.

Circumstances surrounding the death of Duckett, 21, were not immediately released. However, police said she did not die from natural causes.

"We cannot speculate on the direction this takes investigators in our continued search for Trenton," Leesburg police Capt. Steve Rockefeller said. "As more information comes out about the death, we will make additional statements."

According to authorities, Trenton Duckett, 2, was last seen in his room. His mother first noticed he was missing around 9 p.m. Leesburg police said a screen on a window in the boy's room was cut and that he was apparently taken through the opening.

An earlier report that the body of the missing 2-year-old was found in Lady Lake was incorrect. Trenton remains missing.

Thursday, authorities said they are following a new course in the investigation.

"Detectives are changing the focus of their investigation," Local 6's Mike Deforest said. "Until now, authorities were looking for witnesses who saw the child's father the weekend of the disappearance."

Joshua Duckett has repeatedly told police that he was at his mother's house, and after a lie-detector test, it appears that authorities believe his alibi, Local 6 News reported.

Melinda Duckett had earlier told Local 6 News that the day before Trenton vanished, she and the child were driving around visiting friends and family.

Detectives are still searching for witnesses who can either back up her account or contradict it.

Local 6 News learned that police gave a lie-detector test to a friend who was inside Melinda Duckett's home the night she reported her son missing from his bedroom.

"Detectives are satisfied the friend never saw the 2-year-old that night," DeForest said.

Watch Local 6 News for more on this story.