The constitution is based on a principle of the "rule of law".  While it has numerous fine-print conditions that seem questionable, it does not (cannot) exclude the right of a formal and unbiased trial, with full defence facilities allowed.  There is a massive difference between "Guilty as accused" and "Guilty because accused by popular opinion".  A defence lawyer supporting an accused - any accused - is carrying out a constitutionally prescribed duty, regardless of the nature of the charges.
There are no conceivable short-cuts in prosecuting anybody, however guilty he may seem to be.  Otherwise "justice" reduces to a show-trial, where a guilty verdict is predetermined, even before any evidence has been led.