Her brother represented Chris Albert in the 90's on a charge of killing a student while driving drunk, took off, hid out, then later turned himself in. I believe he only got 6 months, 6 months. There is also the question of her involvement with the McCabe/cottage rental, one of them let the cat out of the bag of their association and hence: Auntie Bev. This is what is alerted the defense team in their ask.
In addition to what you mentioned, there were other concerns that the defense brought up in their motion to recuse, specifically a pattern of favoring the prosecution over the defense. And she was continuing to insert herself into the case after she was supposed to be rotated off.
Here's what I wrote at the time: MA - Professor Karen Read, 43, charged with murdering police officer boyfriend John O'Keefe by hitting him with car, Canton, 14 Apr 2023
There are four defense contentions:
- A member of the family that Read claims killed O'Keefe bragged that his family has personal ties to the judge and he referred to her as "Auntie Bev." He also said that he would kill a blogger who has been reporting on the case and bury them in the judge's backyard. The family member has a property on Cape Cod not far from the judge's summer house.
- The judge has been extremely late on ruling on several defense motions. One example is the request for O'Keefe's clothing in order to test it for dog DNA. The motion has been in front of the judge for 72 days so far with no ruling yet.
- On the other hand, when the prosecution filed a motion to cancel an evidentiary hearing three days before it was supposed to occur, the court held an emergency hearing and granted the cancellation immediately, using a "legally incorrect theory". The judge also forced the defense to argue another motion without any notice or preparation time.
- Despite the fact that she is no longer assigned to the case as part of the regular judge's rotation, she still wants to hear the upcoming motion on the gag order instead of the judge that should be assigned to it.
I know for #2, she would end up sitting on that motion for another few months before finally ruling. The dog DNA tests were not completed until shortly before the trial.