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SULLIVAN v. MASSACHUSETTS MUT. LIFE INS. CO.
United States District Court, D. Connecticut (1992) | 802 F.Supp. 716
TL;DR: An at-will employee alleged he was fired for internally reporting suspected insider trading. The court denied the employer's summary judgment motion, holding that a whistleblower claim can proceed based on a reasonable, good-faith belief of illegality, even without an actual violation or external reporting.
Legal Significance: This case illustrates the expansion of the public policy exception to at-will employment, establishing that the exception can protect internal whistleblowers who report reasonably suspected, but not proven, violations of law.