In hindsight, putting Centeno in jail as you suggest would obviously have been a more favorable course of action than the events that took place last night. As of his last conviction, his crimes did not warrant incarceration. 

Even if we wanted to make a massive policy shift and constitutional amendment so that people with Centeno's profile (pattern of aggressive behavior suggestive of possibly dangerous mental illness) were incarcerated indefinitely, we simply cannot afford it.