Casper police arrested a man for assaulting his girlfriend after she was taken to the Wyoming Medical Center for a severe head injury, according to court documents.

Mark Shannon Wood, 35, was charged with one count of aggravated domestic battery and interference with police.

Natrona County Circuit Court Judge Michael Patchen read the charges against him and set his bond at $15,000. He will have a preliminary hearing within a couple of weeks to determine whether his case should be bound over to district court for trial.

The case began early Dec. 24 when police were called to the Wyoming Medical Center for a report of a woman with multiple bruises over her body and a new black eye. She was in surgery for a head injury, according to the affidavit filed with circuit court.

Officers went to Wood's trailer on Center Street where they suspected an assault had occurred, saw him inside and unsuccessfully tried to make contact with him.

Police obtained a search warrant and told him three times from outside the trailer they had a warrant, but he didn't respond. Officers forced their way into the trailer, and Wood came out with his hands up only after repeated orders to do so. They saw he had cleaned the entire bathroom and surround areas with bleach. They also found several droplets of suspected dried blood.

Officers arrested him for interference because of his refusal to cooperate and for destroying evidence. He later told police he came home from work on Dec. 23, had a few drinks and his girlfriend said she wasn't feeling well. He put her in an Epson salt bath and she began having seizures. He gave no explanation for the woman's bruises.

The girlfriend said she was sleeping on the night of Dec. 23 when Wood began screaming at her, threw her off the bed, kicked her, and put her in the bath tub. She said she did not have a history of seizures, according to the affidavit.