Hank Brennan knows that the only way for him to lynch Karen Read is to prevent her from bringing forth witnesses that will prove she's innocent. He has tried and failed to prevent every expert witness from testifying, and is freaking out now that she's brought on a 20 year FBI agent and the Mona Lisa Vito of dog bites: https://tbdailynews.com/canton-coverup-part-491-hank-brennan-is-afraid-to-let-karen-read-jury-hear-from-dog-bite-expert-garrett-wing-fbi-agent-mike-easter-about-john-okeefes-injuries-and-lack-of-proper-investigation/