The woman, who feared that her brother might eventually be killed by the FBI, or might kill again in the meantime, promised Carter that she would do everything humanly possible to help. The FBI had traced Resendez' whereabouts to Mexico where he had absconded not long after the double murder in Illinois. He was believed to be, at that point, hiding near the town of Ciudad Juarez. In his easy-going, unforced rapport with Manuela, Sgt. Carter, who had been a Texas Ranger less than a year, believed in being straightforward.
Sincerity is something people sense.
That's what I did. I was honest with the family. On Monday, July12, Manuela received a fax from the district attorney's office in Harris County, putting into writing the agreement that Carter had stated. The offer was then passed on to another relative who acted as emissary between his sister in Albuquerque and brother Angel in Mexico. That evening, word came from Ciudad Juarez that the Railroad Killer would, based on the Carter's word, surrender.