earliest known murder victim, Jeffrey Alan Konen, killed in September 1970. A possibility exists that the earliest double murder victims were Glass and Yates; however, Brooks specifically described Glass as being killed in an altogether separate double murder from Corll's first double murder in his confession to police. In addition, Brooks only knew the location of Konen's body at High Island Beach because Corll had shown it to him. It is possible that the initial double murder Brooks had discovered Corll in the process of committing occurred after the murder of Konen and before those of Glass and Yates. These details, alongside the two additional bones that were found with the 26th and 27th victims discovered, indicate a minimum of two and possibly four more unknown victims. There are two suspiciously long gaps between known victims in the chronology of Corll's known murders. His last known victim of 1971 was Ruben Watson Haney, who disappeared on August 17. The first victim of 1972 was Frank Aguirre, who disappeared on March 24, meaning no known victims were killed for seven months. Moreover, Corll also is not known to have killed between February 1 and June 4, 1973. The January 14, 1973 disappearance of 16-year-old Norman Lamar Prater has been tentatively linked to Corll. Prater was last seen by his mother in Dallas in the company of an adult male and two teenage youths with shoulder-length hair; he had previously lived in the same neighborhood as most of Corll's known victims and had attended the same high school as Henley between 1970 and 1971. Prater is known to have continued to visit his father in Houston during weekends after he moved with his mother to Dallas. However, no firm evidence exists to link Prater's disappearance to Corll and his accomplices. In March 1973, a Mr. and Mrs. Abernathy had reported to Galveston County authorities that they had observed three men carrying and burying a "long, wrapped bundle" at Galveston Beach. The couple identified two of the men as Corll and Henley. The third individual had long, blond hair—like Brooks. As the couple watched the trio, one of the men (whom they later identified as Henley) advanced upon their car with such a menacing expression that the couple felt compelled to drive away. Two women had also observed three men digging at the beach in May 1973—one of whom they positively identified as