Actually the meetings was not about tenure, at least not hers. She had been notified some time ago. This was to have been her final semester. Now it certainly is.
So,there's a bit more to the story than "professor goes berserk when denied tenure". It still could be about tenure, but it could be about other disputes between her and the department.
Once the trial begins, if she does not plead out, the whole story will be told. Oh and for the record, they questioned the husband all day yesterday along with other acquaintances. This will be proven to be premeditated murder.