If you were the parent of someone being tried for murder, would you lie under oath in court in an attempt to save them? Of course this question is totally unrelated to a certain current event...
If I was unfortunate enough to find myself the parent of a cowardly son, who I knew had been part of a group which had overpowered and killed another young man, purely on the basis that he was black, not only would I not commit perjury on his behalf, I would seriously consider infanticide.
If you know or suspect they're guilty, it's easy, you wouldn't lie.
If you genuinely believe 100% they're innocent and you feel a terrible miscarriage of justice is about to happen unless you prevent it, it's a harder decision.
It would depend in all honesty on the circumstances- however in relation to what I think you are referring to- if my child turned out to be a murderous racist thug then no absolutely not.
/// If I was unfortunate enough to find myself the parent of a cowardly son, who I knew had been part of a group which had overpowered and killed another young man, purely on the basis that he was black, ///
Why the colour of the victim be relevant I just do not know, would you not be equally concerned if the victim happened to be white?