The Brevard County father, who pleaded guilty to starving and torturing his son, was sentenced to 30 years in prison on Friday.
Michael Marshall, 40, of Titusville, was tried after prosecutors say he starved his then 12-year-old son to the point where his son weighed only 40 pounds.
Marshall's girlfriend, Sharon Glass, was also accused and convicted. She was sentenced to 40 years in prison.
The boy is living with a new family and is in good health, officials said.