A man has pleaded not guilty to a charge accusing him of e-mailing an Indiana teenager about conducting a Columbine-style attack on two schools.

Lee Billi of the Cleveland suburb of Lakewood made no comment during the hearing through a video hookup from jail. His attorney entered the plea on a charge of conspiracy to commit murder.

A Cuyahoga County Common Pleas judge set bond at $250,000.

Police in Lakewood say they don't know how far along the 33-year-old and an unnamed 16-year-old from Indiana were in the alleged plan.

Authorities say the two were talking about a Columbine-type plot, a reference to the 1999 massacre at a suburban Denver high school in which two students killed 12 classmates and a teacher before committing suicide.