An O'ahu grand jury yesterday indicted a Kaimuki man on charges that he sexually assaulted a 10-year-old boy over a two-month period this year.

Christopher Brainerd was charged with five counts of third-degree sexual assault and one count of failing to update information for the state's sex offender registry. Bail was set at $50,000.

Brainerd, 41, is accused of assaulting a Kuhio Elementary School fifth-grader from Aug. 1 to Oct. 31. Third-degree sexual assault is a class C felony that carries a maximum penalty of five years in prison.

In 1996, Brainerd was convicted of a sexual assault, sentenced to a year in prison and then placed on five years probation.

Brainerd was arrested on the latest charges on Nov. 8, less than two weeks after the owner of a game room told police he saw a man in his business with a boy sitting on his lap. The man was identified by police in a court document as Brainerd.

Police said the owner told Brainerd that his behavior was inappropriate, but that Brainerd said he wasn't doing anything wrong. Brainerd, however, agreed to stop, police said.

That same day the owner heard one of the boy's friends say that the boy was at Brainerd's house, police said. The owner notified police and the boy's father was contacted, police said.

When questioned by police, the boy said Brainerd befriended him at the gaming establishment and that the two went to Brainerd's home on several occasions between Aug. 1 and Oct. 31, the court document said. The boy told police that he was inappropriately touched by Brainerd during this period, the document said.

Reach Curtis Lum at culum@honoluluadvertiser.com.