Even if what Costello did was wrong, and it was not, it would be utterly improper and unlawful to strike his testimony — testimony that undercut and contradicted the government’s star witness.

The judge’s threat was absolutely outrageous, unethical, unlawful and petty.

Moreover, his affect while issuing that unconstitutional threat revealed his utter contempt for the defense and anyone who testified for the defendant. ...

I am one of the few witnesses to his improper conduct who remained behind to observe his deep failings.