The Commonwealth realized that Joseph Paul fucked up when he testified that key cycle 1162 was Karen Read hitting John O'Keefe and 1164 was him testing it at Canton Police Department. They had no plan for how they were going to combat this until some random guy from Finland emailed them on October 25 to tell them Trooper Paul was wrong. https://tbdailynews.com/canton-coverup-part-435-commonwealths-new-expert-on-key-cycles-is-random-guy-from-finland-on-twitter-who-sent-them-an-email-alerting-them-that-trooper-paul-testified-incorrectly/