My guess is....the attorneys get more $$$ the longer the trial goes on and on and on.
How refreshing to actually have intelligent, well-spoken and articulate witnesses today.... compared to the zoo-like nitwitness testimony displayed previously...lol.
Most private lawyers bill by the hour. The prosecutor is a government lawyer who gets paid a salary. The criminal defense lawyers probably got a large fee up front. The rule for criminal defense is to get paid up front. This is because it is hard to collect once the client goes to jail.