BEND, OR -- A 20-year-old Bend man has been charged with a crime for an incident during a Black Lives Matter demonstration. Dylan Freville is accused of quickly accelerating his truck and emitting thick plumes of diesel smoke from the truck exhaust pipe onto people attending the rally on May 30th. Deschutes County D-A John Hummel says this type of incident is nicknamed “Rolling Coal” and is often used on people riding bikes and using electric cars. Hummel says people at the demonstration got Freville’s picture while Freville himself bragged about what he had done on Instagram. Bend Police cited Freville who is charged with 2-counts of harassment.