The partners dive into a fifty-year-old Vietnam War mystery: What happened to Lt. Felipe Aznar, a distinguished infantry officer who disappeared while on emergency leave from Vietnam and is listed as a deserter? When someone using his name books a roundtrip flight from Los Angeles to Houston, the CID is alerted. The FBI says that Aznar is one name used by a suspected killer-for-hire who has murdered at least sixty men going back thirty years. Against...