Are you going to explain what misdemeanor he violated?
I wasn’t there, and I am not involved in this case. If I am allowed to take the article at face value, then Calanchini “did not have concealed permits to carry two pistols that were found in his luggage.”
I have been trying to figure it out as well. I have not found explicit Colorado law that says that firearms in luggage or a case are not legally “concealed”. Most states have an exception for carrying firearms that way.
In Wisconsin, a man was charged with having a concealed weapon because the pistol was “concealed” in his place of business! That case went all the way to the State supreme court, which ruled that the law did not apply to a persons own private property, otherwise a firearm would be “concealed” when stored in a gun safe.
I don't know what Colorado precedent there might be, but it just seems to be common sense that a pistol in a gun case is not “concealed”.