A Worland man pleaded not guilty to eight counts of sexual assault of a child and one count of sexual exploitation of a child during his arraignment in Natrona County District Court on Thursday.

Raul Trujillo, who was 48 when he was arrested, allegedly molested a girl between 13 and 15 years old in Mills, according to court records.

Because Trujillo is a convicted sex offender, conviction on one or more of the counts could result in life in prison without the possibility of parole, District Court Judge Catherine Wilking told him.

He is charged with four counts of second degree sexual abuse of a minor, with each count punishable by up to 20 years imprisonment; four counts of third degree sexual abuse of a minor, with each count punishable by up to 15 years imprisonment; and one count of sexual exploitation of children, punishable by not less than five years and not more than 12 years imprisonment.

The case started in October when the father of the victim told the Mills Police Department that officials at his daughter's school told him she was the victim of a sex offense. She was afraid to go home because she was being molested by an unrelated adult male at the house, according to court documents.

The adult male was Trujillo, who was released from prison in December 2013 after serving 15 years for a similar offense.

When interviewed, Trujillo admitted committing a number of various acts on the victim, according to court documents.

The alleged offenses occurred between May and October.

Police also learned Trujillo had taken pictures of the victim in various stages of undress, which lead to the charge of sexual exploitation of a child.

He is being held on $150,000 bond. A trial date will be set later.