45 years later he renounced son, the woman learns that he died in Lockerbie bombing

AP file

Police and investigators look at what remains of the Pan Am 103 flight deck in a field in Lockerbie, Scotland, on December 22, 1988.

By Tracy Connor, writer, NBC News

For 45 years, Carol King-Eckersley fulfilled a promise not seek the child who had been given up for adoption when he was just a teenager, but that changed when her husband died last year and he decided to look for his son.

She knew his name and date of birth, and easily found a reference to it on the Internet — his enthusiasm soon turned to horror as he became aware that was on a page for the victims of the bombing of flight 103, Pan Am over Lockerbie, Scotland.

"So I became a kind of double tragedy," King Eckersley, 45, told a BBC documentary. "He found it and lost it on the same day."

The widow of Oregon was the daughter of 19 years of age from a school principal when she got pregnant and felt under pressure to give up her baby.

The only time that he never saw the child who became Kenneth Bissett was the day that was in the car from the lawyer who organized the adoption, as he left a hospital in New York City.

"There was this little bundle wrapped in the seat front and everything that occurred to me, all the way from Queens in New York in the middle of Manhattan, was 'no llores'", said the BBC.

"I knew that if was crying that he could not do it." I never had it, but now I have to cry for him."

She had promised not to contact him or to interfere in your life, and stayed to until last April, when he made the surprising discovery that had been dead for nearly 25 years.

Bissett was a junior at the University of Cornell 21 years enrolled in the program of study abroad at the University of Syracuse in London when he boarded the flight 103 to New York on December 21, 1988.

A terrorist bomb had made pieces of the aircraft, killing all aboard.

"There was always hope and dream that one day come a blow in the door and opened it and there would be this high handsome gentleman saying: 'Hi, I think you're my mom,'", said the King-Eckersley. "When I saw it in my computer it was as if someone had come to light because that hope was gone."

"I'm still in its semi numb after you lose someone you love", added. "Although I did not have it with me physically, he was always in my heart. I've thought of it practically every day."

The adoptive parents of Bissett had already died and when Syracuse conducted a 25th anniversary Memorial to students killed in October, King-Eckersley attended.

"Was a feeling amazing for me to be included and I feel like Ken and others were guiding the issue in some way," he said in the documentary.