I too believe in free speech as you explained in that story. Not just for the reasons you mentioned but because if we limit speech to the truth somehow we have to adjudicate the truth and we don't really have a good way of doing that.

We need to talk about this, "You don’t have the right to kill other people." I am not sure this is true. The clearest exemption is self-defense. There is also accidents, if you cause a person to die accidentally and you were acting in a reasonable manner, you are within your rights. Say I am at work, I am vaccinated but have a breakthrough COVID infection I was not aware of and I am not wearing a mask. One of my coworkers catches the infection from me and dies. Do you hold me responsible, convict me of wrongful death.

In a free speech example, say I am writing on an online forum supporting mask mandates and have a large following of rabid supporters. I make a casual comment about people who don't wear masks are killing people and don't deserve to live. What if one of those rabid supporters flies off the handle and starts slashing people not wearing masks on the subway. In their trial they say that my comment is what motivated them to slash non-maskers.