Are you obtuse? Yes, the DA says that it was legal, but you can almost hear the sigh in his voice in that quote. He says that there's nothing to be done, that he just wants to look forward not backward. Do you understand the concept of political pressure on a DA, or have you been sheltered from such real-world things? Yes, the DA can drop the case, and he very well still might, given the way the court's been deciding on all the evidence that he'd like to exclude. What will you say when he does?
The DA didn't have to charge the case in the first place. Are you even reading my posts?