Before epilepsy was understood to be a neurological condition, people believed it was caused by the moon, or by phlegm in the brain. They condemned seizures as evidence of witchcraft or demonic possession, and killed or castrated sufferers to prevent them from passing tainted blood to a new generation.
Wouldn’t it require an act of free will to decide that the murderer had no free will and therefore shouldn’t be jailed? If we have no free will and are always acting in response to that complex array of dominos, then the judge and jury sending the murderer to prison have the same amount of choice as the murderer.
That would be correct, the judge and jury have no more choice than the murderer, which is none. Hypothetically, the appearance of choice doesn’t mean there is choice or free will. As a slightly tortured analogy, like “perfect” loaded dice, which appear that they could be anything but always give the same result.