That article is BS.
First of all, four people were already convicted of planning the attack before the rally had even started or Trump anything, in fact they showed up there armed with weapons and restraints.
That is not the fault of Trumps words.
Secondly, political rally's are supposed to get people riled up, that is the point of a rally.
Thirdly, saying "fight like hell" does not mean to use violence, it means to resist injustice in this case and that is verified by Trump telling them specifically to protest peacefully.
There is absolutely no way any court is going to convict Trump of this unless Smith can prove a connection between those that had pre-planned this attack and Trump and there isn't one.
Trump had no idea a riot was going to happen and he wasn't trying to inspire one.
If you listen to his over hour long speech there is nothing in there pushing the crowd to storm the capital, in fact it's boring as fact, just a lot of Trump whining about the election. The left have pulled out a couple of phrases out of thousands of words and are using that to try and say Trump caused this.
It's utterly ridiculous.