A British soldier was unjustified in shooting dead a pregnant teenager sharing a last embrace with her boyfriend in Belfast during the Troubles in the North, a coroner said.
Marian Brown, 17, did not pose a threat to anybody and the British military could not have identified a clear line of fire, Judge David McFarland said.
He accepted members of the UK's Royal Anglian Regiment acted in self-defence on 10 June 1972 after someone travelling in a vehicle opened fire on their checkpoint in the west of the city with an automatic weapon.
Thomas Corrigan was badly injured as he and his first love were caught in the crossfire.
He said: "I am pleased that the truth has finally come out.
"It makes a difference but it won't bring back Marian.
"It won't bring back the child that we lost and of course it still creates problems for me and Marian's family."
The coroner was unable to identify the British soldier who fired the lethal round as he delivered his preliminary ruling in Belfast.
He said: "Neither Marian Brown or anyone at her locality was acting in a manner that could reasonably or honestly have been perceived as posing a threat of death or injury to any civilian on Roden Street or to the soldiers positioned in the vicinity of the junction of Clifford Street and Roden Street.
"The force used was more than absolutely necessary in that the soldier could not have identified any target, and a clear line of fire to that target, that was posing a danger to him, his colleagues and/or to the civilians on Roden Street.
Two members of the British armed forces admitted unleashing 27 rounds in Miss Brown's direction without warning, believing they faced firing gunmen.
The coroner added: "No shot should have been fired unless an identified target could be made out and aimed at with sufficient confidence of striking the person.
"The use of force by the soldier that caused the death of Marian Brown, whoever he was, was not justified."
British Army rules of engagement were not followed and there was an "inadequate" investigation afterwards, the coroner added.
Mr Corrigan was walking with Miss Brown, a stitcher, and her sister.
She was going from her home at Stanhope Drive in Belfast to her sister's house, they were parting ways and sharing a last hug when he heard loud firing erupt.
After the inquest, he said: "She was a beautiful girl really, not even a woman, and yes she was pregnant with our child.
"To lose her was a massive part of my life."
Miss Brown's brother Richard Brown said he was sorry it had taken 46 years to prove something the family knew from day one.
"She was just a happy-go-lucky kid - she never got a chance."