Estou tentando traduzir a musica Copacabana de Barry Manilow, só que, tem frases que eu não consigo traduzir e, também não encontro em dicionários.

Vou colocar algumas partes da musica para me ajudarem.

Her name was Lola, she was a showgirl

With yellow feathers in her hair and a dress cut down to there

She would merengue and do the cha-cha

And while she .......................

Across acrowded floor

He was escorted to his chair, he saw lola dancin´there

But Rico went a bit too far, Tony sailed across the bar

And then the punches flew and chairs were smashed in two

There was blood and a single gun shot

But just who shot whom? (o que significa o "just" aqui eu sei que é apenas, exatamente)

Agradeço aos professores e expert da língua inglesa.