2002: Johnny Owen's father, Dick Owens, makes his peace with Lupe Pintor
The story of the 'Matchstick Man' is dominated by its tragic end - the frail-looking Welshman was beaten to death in a Los Angeles ring by Mexico's Lupe Pintor.
Owen was no defenceless boy, though.
The Merthyr man had earned his shot at the WBC bantamweight title with 25 wins from 26 professional fights, his only defeat a highly controversial points loss to Juan Francisco Rodriguez in Spain that he later avenged in Wales.
He had been boxing since he was 10-years old and, despite his appearance, Owen had a remarkable work-rate and could trade with the best in the division.
1978 highlights: Johnny Owen v Wayne Evans and Paul Ferreri
"He looked so thin but the core strength that he had was phenomenal," said three-time world welterweight title challenger Colin Jones.
"I can vouch for that first hand from sparring with Johnny, he would stand and trade with the best of them."
Owen's perpetual motion work-rate had won him the British, Commonwealth and European titles, taking the painfully shy, hugely popular 24-year-old from headline shows at Ebbw Vale Leisure Centre to LA's intimidating 10,000-seat Olympic Auditorium.
"He trained very hard [in America], he was very confident, everything went fine," trainer Dai Gardiner told BBC Sport Wales on the 30-year anniversary of the fight.
"He had won British, European and Commonwealth titles - he was ready for a world shot."
Controversy still surrounds the decision to take Owen to a venue where he would face not just the formidable Pintor, but the full fury of the Mexican's fervent Latin American support.
Some still argue that the title shot could have been secured in Wales and that he was given insufficient time to prepare in the heat of southern California, but Owen had trained as mercilessly as ever and eagerly awaited his shot at glory.
"There was a real buzz around Wales before the fight," said Jones. "Johnny was always fantastically fit and Dai Gardiner knew how to get the best out of him."
Johnny Owen is a legend in his home town of Merthyr Tydfil
Taking no heed of the ridiculing of his skeletal frame from the US media, Owen stunned the home crowd with a thrilling start, and bewildered Pintor with his tireless, peppering punching.
"There were a lot of Mexicans in the auditorium, they gave us problems, it was jam-packed there," said Gardiner. "But Johnny was very professional, took it in his stride and started very well."
In the fifth round he threw 148 shots and had already cut the man known as 'Guadalupe' over both eyes.
But Pintor's bull-like strength was evident, and, although he had landed few punches, the Mexican had opened a cut in his opponent's mouth that left Owen swallowing large amounts of blood.
"Up to the eighth round everything was going really well, the American promoters were getting worried," said Gardiner.
"Johnny looked so frail, they hadn't even thought he could fight."
By the seventh, distance began to open up between the boxers, leaving Owen more exposed to his opponent's long, dangerous shots.
He was caught in the ninth, but it was a snap knock down and he was quickly back into the fray.
"In the ninth he got caught and went down for the first time in his career," said Gardiner. "I was worried, but in the corner Johnny wondered what all the fuss was about.
Johnny probably shouldn't have fought me because his style was more like an Olympic boxer
"He was bleeding very badly from his lip from the fourth round, but we didn't think there was any trouble. I couldn't have stopped the fight because it was going so well."
By the 12th Owen's punch resistance was gone and he was dropped by a fierce, straight right.
He bravely got back to his feet, but collapsed horrifically from a huge right uppercut - and never recovered consciousness.
"The 10th and 11th went very well, then the disaster struck in the 12th," said Gardiner. "I knew it was bad straight away, he just crumbled."
Despite the problems he had faced in the fight, Pintor would later say: "Johnny probably shouldn't have fought me because his style was more like an Olympic boxer.
"He was scoring points, not with hard shots, but they were fast and there were lots of them.
"For him to have someone in front of him who was capable of hitting him with hard shots over 15 rounds in a world championship bout, that was going to tell.
"Keeping up that rhythm - that endless rhythm - was going to wear him down in the later rounds."
2010: Dai Gardiner and Colin Jones pay tribute to Johnny Owen
Owen was stretchered out through a rabid auditorium, the Welsh entourage having urine thrown at them and their pockets picked as they left the ring.
"The Mexican crowd showered us with drink and everything else, they took all our equipment from the corner [but] they didn't realise how bad it was," said Gardiner.
Jones added: "Any Welsh sporting fan can remember where he was that sad night.
"I was having a meal out and can remember seeing it on television - I can honestly say it was one of the saddest days of my life."
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