Joshua Royce Mauldin, 20, was found guilty of injury to a child for abusing his 2-month-old daughter, Ana, while he was alone with her in a room at a Galveston motel, The Galveston County Daily News reported Wednesday.

Mauldin told Galveston police that before placing the infant in the microwave and turning it on, he threw her, hit her and put her in both the room's safe and refrigerator.

The child, currently in foster care, was so badly burned that doctors had to amputate most of her left ear.

At the time of the incident, Mauldin and his family had driven to Galveston from Arkansas.

He told police God had called him to Galveston to enter the Christian ministry.

Mauldin pleaded not guilty by reason of insanity to the charges against him. A sentence ranging from probation to life in prison will be decided by a jury Wednesday, the Daily News reports.