I'm seeing no mention of Mormons breaking laws, the only mentions of law breaking references other people breaking laws to persecute Mormons. The governor of Missouri's declares that they are to be expelled or exterminated (!!!), the mobs attacked them and killed them, no mention anywhere in your link of Mormons breaking any laws.

Note that I do not take the position that Mormons broke no laws, I'd just like to know what laws they broke, and particularly what federal laws they broke, since my reply is to the claim that they broke American laws and not of some specific state.