Not unless they are USED to facilitate a crime. You seem to have a problem with the 2nd amendment as do most liberals and social conservatives.
What do you care if a person has a gun while they do something illegal if that gun isn't part of the criminal act? If a person gets pulled over for a DUI, do you think the penalty should be enhanced if he has a gun with him?
I have no problem with enhancing the penalty if a person uses a weapon to facilitate a crime but not for simple possession if the possession is simply incidental like in the case in the article.
If the guy was a felon and was violating the law for possessing a gun then he should be charged for that, but in this case, his being a felon had nothing to do with it so it is fallacious for you to use that argument.