Google has fired Margaret Mitchell, co-lead of the ethical AI team, after she used an automated script to look through her emails in order to find evidence of discrimination against Timnit Gebru. The news was first reported by Axios.

Mitchell’s firing comes one day after Google announced a reorganization to its AI teams working on ethics and fairness. Marian Croak, a vice president in the engineering organization, is now leading “a new center of expertise on responsible AI within Google Research,” according to a blog post.

The ethical AI team has been in turmoil since Gebru’s termination in early December. After the announcement yesterday, senior researcher Alex Hanna wrote that the team was not aware of Croak’s appointment until news broke Wednesday night. “We were told to trust the process, trust in decision-makers like Marian Croak to look out for our best interests,” she said on Twitter. “But these decisions were made behind our backs.”

“After conducting a review of this manager’s conduct, we confirmed that there were multiple violations of our code of conduct, as well as of our security policies, which included the exfiltration of confidential business-sensitive documents and private data of other employees,” Google said in a statement to Axios about Mitchell’s firing.

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