Yes, it is called free speech, as is already duly noted in my parent comment which you may read again. In fact, the responsibility to note a legal doctrine of wrongdoing is entirely yours.
Free speech absolutely does allow assigning blame, whether correctly or incorrectly. It also allows suggesting criminal action at some point in the future, just not imminently.
What legal doctrine is that, and can you point towards precedent? Or is it one of those "I feel like the law should" situations?