Robert Riggs

Federal law enforcement sources say McDuff revealed that he cruised every major city in Texas looking for women to abduct. He also made frequent trips into Mexico while out on parole for three years until his arrest in 1992. Investigators suspect he could be responsible for dozens of murders. But McDuff turned angry and quit talking.

Federal law enforcement sources say McDuff revealed that he cruised every major city in Texas looking for women to abduct. He also made frequent trips into Mexico while out on parole for three years until his arrest in 1992. Investigators suspect he could be responsible for dozens of murders. But McDuff turned angry and quit talking.

McDuff claimed he would give a full confession in a taped interview to a documentary film producer from Austin. But the prison system was concerned that McDuff's family might later profit from the production. And there was concern that McDuff was just trying to manipulate the system one last time.

McDuff claimed he would give a full confession in a taped interview to a documentary film producer from Austin. But the prison system was concerned that McDuff's family might later profit from the production. And there was concern that McDuff was just trying to manipulate the system one last time.

McDuff claimed he would give a full confession in a taped interview to a documentary film producer from Austin. But the prison system was concerned that McDuff's family might later profit from the production. And there was concern that McDuff was just trying to manipulate the system one last time.