Shouldn't some qualified officials be allowed to carry guns on city property, as well as police offic?

Mayors, judges, and city and prosecuting attorneys, with proper training and a concealed carry permit, could help to stop killing rampages like the "Cookie Thornton" incident at the Kirkwood MO city council meeting and the "Kenneth Baumruk" killing rampage at the Clayton MO courthouse. One armed on-site cop or bailiff is too likely to be the first victim.