Four of five teenagers accused of conspiring to carry out a shooting at Hutchison High School have pleaded not guilty in juvenile court.

The Hutchinson News reports three of the suspects denied the charges in court Tuesday, while a fourth suspect previously denied the charges in writing. The fifth suspect is scheduled for a court hearing Wednesday.

All five are charged with solicitation to commit first-degree murder and criminal threat. They were arrested in April after Hutchinson High School officials were alerted to postings on Facebook that threatened a mass murder at the school.  They have all been held in juvenile detention since their arrests.

Reno County prosecutors said the state was not ready to schedule the cases for trial because they are waiting for more information from Facebook.