A King County Chief Juvenile Court Judge on Wednesday ordered electronic home-detention for a 16-year-old Edmonds-Woodway High School student on Wednesday after finding probable cause that the boy posted an anonymous threat to shoot up Skyline High School in Sammamish last month, our online news partner The Seattle Times reported .

Judge Helen Halpert warned the boy that if he used his “significant computer skills” to tamper with his ankle bracelet she would order him held in secure detention while his case is adjudicated. She also ordered him not to have any unsupervised access to the Internet, The Times said.

According to The Times, Halpert said she was concerned after learning that the boy had posted a similar threat in April to shoot up Meadowdale High School in Lynnwood, but agreed to electronic home-detention after the boy’s attorney, Jeff Kradel, argued that there were no indications the teen, who does not have a criminal or violent history, had taken any steps to carry out an attack. While police seized computers and cellphones from the boy’s Edmonds home, no weapons were found, Kradel said.

You can read the entire Seattle Times story here.