The 12-year-old boy also had been strapped to a bed or locked in a bathroom for days or weeks at a time over the past year, the police report said. He was treated at a hospital for malnutrition and dehydration.
Brevard County Jail records show 38-year-old Michael Marshall and 48-year-old Sharon Glass have been charged with three counts of aggravated child abuse. Both are being held without bond.
They are expected in court Friday afternoon. It is not immediately clear if they have an attorney. There was no working home phone number listed for the couple.
The Titusville Police Department received a report of a young child being unlawfully caged and suffering from abuse, though the report doesn't spell out whether there was a cage inside the closet. Authorities in Titusville have not returned telephone calls from The Associated Press.
Officers found the child locked in a bathroom lying on the floor. His appearance was described by hospital staff as resembling images of concentration camp survivors, the report said.
Two other children at the home, ages 5 and 10, have since been removed from the house and were being seen by doctors, said Carrie Hoeppner, spokeswoman for the Florida Department of Children and Families. It was not immediately clear how the siblings were related.
"No doubt that the younger two have been subjected to mental abuse," Hoeppner said. "All three siblings were victims."
Welfare officials investigated "environmental hazards" at the home in the summer of 2010, though it wasn't immediately clear exactly what those hazards were. Once the investigation was closed, the boy was taken out of school and went "unnoticed for so long," Hoeppner said. There were no other reports from the home or contact between welfare officials and the couple.
The couple's home is located in Titusville, about 40 miles east of Orlando on the coast. The town was known as a good place to watch space shuttle launches at Cape Canaveral.
Myrtle Wilcox, a neighbor, said she hadn't seen the boy since November, when he was outside on the front lawn playing with a dog.
"The boy looked to be about 8- or 10-years-old," Wilcox said.
She said he was slender but nothing seemed wrong.
On Christmas Eve, Wilcox said Marshall had come over to get help jumping a car. He and his girlfriend wanted to go to a store to buy last minute gifts for their children.
"Just ordinary people," Wilcox said. "Going to work and tending to their own business and taking care of their family. That's the only thing I could assume about them."
