POSTED: 04:53 a.m. HST, Jul 19, 2012
A 13-year-old boy was arrested Tuesday after he allegedly assaulted his 11-year-old sister when she ignored his order to clean his room in Waipahu.
Police said the boy got a knife and threatened his sister about 10 a.m. when she did not respond to his order.
The girl then went into her brother's room and lay down, and the boy assaulted her, police said.
He was arrested for investigation of first-degree terroristic threatening and abuse.