"Chico" Bouchikhi, of course, has his own side of the story.
The Francois Mattei book leans heavily towards Chico's point of view anyhow,
since, out of the whole Gipsy Kings line-up at the time,
Chico was the one who spoke at the greatest length and depth to author Mattei.

There are at least three places to learn more
about Jahloul "Chico" Bouchikhi for those who wish to.

Biographer Gwenndoline Sauval collaborated with Bouchikhi for
an authorised biography titled
Chico, L'âme des Gypsies, published in 2006, French language, in France.

Bouchikhi has since published a more informal paperback called
Mes plus belles rencontres, in 2016, also French language.

Then there is Chico's homepage, which includes English and French.