Not wrong.
She was murdered by this black man because she was white.
Her father can blame guns all he wants, but it's cowardly to avoid the real issue of his daughter's skin color.
Because that was the reason she was murdered.
That doesn't make her 'whiteness' the problem. 'Whiteness" isn't a problem. It just is. Same with "blackness", brownness", etc.
She was murdered by this black man because she was white.
She was murdered by a violent racist, leftist, sodomite murderer, because he's a violent racist, leftist, and sodomite. Intentionally or not, you're blaming the victim.