The teen accused of planning a mass shooting and bombing at a mall in Kelso appeared in a Columbia County court for the first time on Friday. While cameras were not allowed, both the defense and the prosecution revealed extensive new details about the suspect’s past and how the FBI was able to connect him to the alleged plot on Three Rivers Mall in Kelso.

An Oregon teen has been arrested in connection with an alleged mass shooting plot targeting the Three Rivers Mall in Kelso, in southwestern Washington, officials said.