Safe bet that's not the case lol.
Seriously,I just think it's because of the current state of a myriad of factors. And to top them off with Wisconsin to boot, in light of the last 2 weeks. Everyone has their guard up bigtime. One slip of the tongue and a high paying, highly esteemed, lifetime career is toast.
They knew who this guy was before he hit hit anyone. The police scanner transcripts/audio are out there. He was being pursued before he even entered the downtown area.
So, why would they withhold his identity? If this guy gets bail, what prevents him from jumping into another car and running down more people? Atleast, if you knew who the guy was and what he looked like, people can be more alert and if he were to run over people again, maybe, there would be a faster response. A citizen with a concealed carry permit can shoot him on the spot to stop him from killing more people? It just takes one crazed criminal to kill a good number of people in a short period of time.