[PAR] [TLE] Ira Einhorn [SEP] Ira Samuel Einhorn (born May 15, 1940), known as "the Unicorn Killer", is an American environmental activist convicted of murdering his ex-girlfriend Holly Maddux.  On September 9, 1977, Maddux disappeared following a trip to collect her things from the apartment she and Einhorn had shared in Philadelphia.  Eighteen months later, police found Maddux's partially mummified body in a trunk in his closet.  It had been packed with Styrofoam pellets, air fresheners, and newspapers. [PAR] [TLE] Robert Eringer [SEP] Robert Eringer, born October 5, 1954, is an author, investigative journalist and private-sector counterintelligence operative.  "Salon magazine" described Eringer as an “obscure journalist” with ties to Clair George, the former Deputy Director of Operations of the CIA.  Eringer freelanced for the FBI's Foreign Counter-Intelligence Division to assist with the apprehension of Edward Lee Howard, an ex-CIA officer who defected to the Soviet Union in 1985.  In this ruse, Eringer commissioned Howard to write the "Spy’s Guide to Central Europe".  Eringer describes his assignments for the FBI, which also included keeping tabs on Ira Einhorn, in his book "Ruse: Undercover with FBI Counterintelligence" (2008).
[PAR] [TLE] Ira Einhorn [ SEP ] Ira Samuel Einhorn ( born May 15 , 1940 ) , known as " the Unicorn Killer " , is an American environmental activist convicted of murdering his ex - girlfriend Holly Maddux . On September 9 , 1977 , Maddux disappeared following a trip to collect her things from the apartment she and Einhorn had shared in Philadelphia . Eighteen months later , police found Maddux 's partially mummified body in a trunk in his closet . It had been packed with Styrofoam pellets , air fresheners , and newspapers . [PAR] [TLE] Robert Eringer [ SEP ] Robert Eringer , born October 5 , 1954 , is an author , investigative journalist and private - sector counterintelligence operative . " Salon magazine " described Eringer as an “ obscure journalist ” with ties to Clair George , the former Deputy Director of Operations of the CIA . Eringer freelanced for the FBI 's Foreign Counter - Intelligence Division to assist with the apprehension of Edward Lee Howard , an ex - CIA officer who defected to the Soviet Union in 1985 . In this ruse , Eringer commissioned Howard to write the " Spy ’s Guide to Central Europe " . Eringer describes his assignments for the FBI , which also included keeping tabs on Ira Einhorn , in his book " Ruse : Undercover with FBI Counterintelligence " ( 2008 ) .
Robert Eringer worked for the FBI in keeping surveillance on the activist accused of murdering whom?
Robert Eringer worked for the FBI in keeping surveillance on the activist accused of murdering whom ?
Holly Maddux
Holly Maddux