Dillon Cossey, 14, is led into the courtroom at the Montgomery County Courthouse for a hearing in Norristown, Pa., in this Oct. 12, 2007 file photo. Cossey, who admitted plotting a school attack near Philadelphia, had chatted online about the Columbine massacre with a teenage outcast who killed eight people and himself in a high school shooting in Finland, the Pennsylvania boy's attorney said on Monday, Nov. 12, 2007.