Man sentenced for setting Blue Heron paper mill on fire in Oregon City By OPB staff (OPB)Dec. 5, 2025 12:43 a.m.Christian Gannon Dukes pleaded guilty Thursday in a Clackamas County courtroom to arson charges and will serve 60 months in prison.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up