Some consider it the oldest parental abduction case in the country, and the search for a Rochester real estate broker and his two young sons who went missing in 1986 is still ongoing.Charles Vosseler is wanted by the FBI for the 1986 kidnapping of his sons, who were 3 and 2 years old at the time. The search to find C.J. and William Vosseler has led authorities around the world, and the boys' mother hopes she'll one day see them again."I just want them to know that their mother didn't die, that their mother hasn't stopped caring about them," said their mother, Ruth Parker.Parker said that every day for the past 38 years, she has searched desperately for her sons.>> Download the free WMUR app to get updates on the go: Apple | Google Play <<"And I do know that they're now adults with their own lives," she said. "And they have been told another story, and they have lived another story."That other story begins on Oct. 9, 1986. Parker said her husband took the kids for the weekend, saying he'd be back in a couple of days. When he didn't show up, she called him on the phone. >> Unsolved case: The Vosseler abduction "And that's the last time I heard the boys and the last time I spoke with Charlie," Parker said.Authorities said that when Parker went to confront Vosseler at his real estate office in Rochester, she discovered it was closed for good. Before going to the police, Parker made another gut-wrenching realization back at home. Investigators said Vosseler had taken all the photos of the boys and their birth certificates, wiped out their bank account and stopped paying the bills. According to Parker, he had taken their children and vanished without a trace. "You just completely fall apart," she said. "Nothing seems important anymore."The only photos Parker could get ahold of were clipped from a video her friend took at a company picnic. A few years later, in 1989, Parker thought her nightmare might be over. A tip came in that Vosseler and her children were living in Oklahoma using different names. "At that point, C.J. was now Chuck, and Billy was Will, and they were all Wilsons," Parker said.She bought a plane ticket and was ready for the good news that the FBI had found her boys."They went to Oklahoma, and by the time they got there, the place where Charlie had been living was burned to the ground," said lead volunteer investigator Monty Curtis."So, I lost them again," Parker said. "He took them again."Over the years, the FBI has chased down hundreds of dead-end leads, and several age-progression photos have helped push the case forward."All it takes is one set of eyes to be a hero," said John Bishoff, of the National Center for Missing and Exploited Children. "We've seen it time and time again, and we know it happens."According to the National Center for Missing and Exploited Children and the FBI, the case is still open and active. If Vosseler is found, he would face state and federal charges. "The FBI is offering a $25,000 reward for information leading to the arrest of Charles Vosseler," said Tim Demann, FBI supervisory special agent in New Hampshire."He has gone undetected since 1989, and I don't know how you do that," Curtis said.Parker is convinced Vosseler told the boys she died and that they know nothing about their lives as toddlers. While she has never lost hope, she has lost years."And if I had my wish, I would get all those years back. But I can't," she said.C.J. is now 41, and Billy is 39. "I accept that they are their own people at this point," Parker said. "So, I would just love to talk to them, know that they're safe."Long gone are the days of rocking her boys to sleep or reading them their favorite books, but Parker said she still dreams of the day she'll see them again.Anyone who has any information about the case should contact their local police.