48 hours is only for regular cases with one or two cops assigned. High profile stuff like this gets considerably more attention and resources for a longer period of time

First 48 is about finding a victim alive. Murderers are commonly identified and caught outside that window.

At this point, I don't even think they want to catch him anymore. He's already being talked about as a hero, throwing him in jail would make him a martyr. People would protest at the trial too, it would be a mess.

If they catch him they will kill him.