You are not entitled to claim on your own authority that something is documented on film, then add that claim to the article without a reference.  Especially not a criminal allegation.  And especially not regarding a living person.  Even if the claim is correct there's the question of weight and appropriateness for the article, which is about the band, and not one article.  I suggest you find judicious, reliable sources, and make a neutral statement in the article.  Until then, unreferenced claims violating WP:BLP can be removed summarily.  And if you continue to edit war you can be reported to both the WP:AN3 and BLP notice boards.