I feel for the guy. As a prosecutor, you do rely on the witnesses testimony. Remember he had cops and the victim saying this guy shot her. He offered a plea, want taken. He’s not the DA, he’s the Assistant DA, he may not have had the option to just drop the case. DAs are elected.
He also has his own case load including many other felony cases. How much time can he devour to a first time attempted murder when he may have other more serious offenders to prosecute?
I’ve been lied to by a witness/victim as a prosecutor and found out during trial. It is awful, you feel awful and it’s just awful all around. I felt terribly for the defendant, and happily the decision was not guilty. But that’s why I’m not a prosecutor any more!