victor samuelsson had been kidnapped by marxist guerrillas. >> after $14 million in ransom was paid, samuelsson was returned unharmed in april 1974, 18 years to the day sidney risso disappeared. >> we need to know if indeed there is a group that is holding mr. risso. >> but the fbi's behavioral science expert becomes suspicious of the group's international claims. >> i think we had one call from new york, and then one call late in the investigation from georgia. all of the phone calls that we were able to capture were all within a five to ten mile radius. >> in fact the kidnappers seemed to have intimate knowledge of morris county. investigators have a hunch the kidnappers are not the environmental crusaders they claim to be. they're locals. >> mrs. risso says she's concerned about her husband's health. he had a heart attack three years ago, but she has faith. >> he's honest and he's good, so if anybody can survive any set of circumstances like that, he can do kit. >> the suspect has been identified by the sheriff's department as eric houston. >> in olive hurst, california, the local