Earlier this year I submitted a FOIA request to the FBI for all records cross-referencing or pertaining to Ira Samuel Einhorn. The late Einhorn, dubbed the "Unicorn Killer," was convicted of the murder of his former girlfriend Holly Maddux. It is a tragic and somewhat complex saga that winds through the environmental activist community and an international trail of evading authorities.

The infamous EinhornMaddux disappeared in 1977 during a trip to gather her belongings from an apartment she ...