EVERETT — A third-party investigator found that claims of adults preventing student involvement and fostering a toxic culture on a high school robotics team in Mill Creek were unsubstantiated.

This is the third report completed in the last two years after a family has repeatedly raised concerns that adult mentors build the robots for the Jackson High School robotics team and silence critics. The team, known as “Jack in the Bot,” won the 2025 FIRST Robotics World Championship earlier this year .

The complainants who originally raised the concerns — James, Shelly and Robin Lee — did not participate in the investigation, saying previously that it would “give it a veneer of legitimacy which it does not deserve.”

The most recent 46-page report, completed in mid-October and obtained by The

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