HOUSTON -- A doctor testified Friday that burns on a 2-month-old baby were not consistent with her parents' story, KPRC Local 2 reported.

Joshua Mauldin, 20, is charged with felony injury to a child. He has been accused of putting his daughter, Ana, in a Galveston hotel microwave and turning it on for 10 to 20 seconds.

A pediatrician who examined Ana said the Mauldins' story did not make sense to him.

"The presentation was that these might have been scald burns from spilled hot water," Dr. James Lukefahr said. "My opinion was that the burn pattern really did not fit that explanation."

The parents gave other versions of how Ana suffered the burns, Lukefahr said. One reason given was a severe sunburn and another was a chemical reaction from a comforter.

Lukefahr recommended police re-interview the parents to see if there was something more than what they had been telling.

Mauldin later admitted that he put Ana in the microwave, prosecutors said. Mauldin is also accused of punching the baby and putting her in a refrigerator and a hotel-room safe.

Attorney Sam Cammack III said that despite having a videotaped confession from Mauldin, the prosecution has given too much conflicting information for jurors to know what really happened.

"I guess you would have to be the judge of what you think the state has shown," he said. "We've heard conflicting stories about how the burns occurred, what may have happened, who was there, who heard this, who heard that."

Cammack said Mauldin has been hearing voices since he was 10 and has been "wracked by psychosis, bipolar (disorder), major severe depressive disorder, schizophrenia" that was never treated. Cammack said Mauldin heard voices telling him to kill his parents when he was 13 years old.

Mauldin's wife, Eva, has blamed Satan for her husband's actions, saying the devil disapproved of his efforts to become a preacher.

Galveston County prosecutor Xochitl Vandiver told jurors Mauldin was not insane and hurt the baby because he couldn't stop her from crying.

Ana, who had her first birthday last week, was hospitalized for 11 days with burns on her hands and face and required two skin grafts. Child Protective Services officials said Ana is still receiving treatment but is doing well and living with relatives in Texas.

If convicted of the felony charge, Mauldin faces with a sentencing range from probation to life in prison. He has been jailed since his arrest.

Mauldin has pleaded not guilty by reason of insanity. The state's definition of insanity is that a severe mental illness prevents someone who is committing a crime from knowing that it is wrong.