Calling himself \u201cJ. Hawker,\u201d David Heesh dynamited several high-voltage powerline towers, then threatened to keep it up unless ransom was delivered; the FBI busted him using a CB radio trick. (Beavercreek, Clackamas County; 1970s) (For text and pictures, see https://offbeatoregon.com/1404b.beavercreek-bomber-targeted-BPA.html)