Chief Among Us - Max and Michelle Mysteries, #3

Early Monday morning, each Central Insurance Company employee had an email. In that email was a detailed ten-year salary history of each employee in the division. Those juicy details were quickly digested and disseminated. Yelling and fighting ensued; the building had to be evacuated. Security analyst Kristy Backman might have identified the emailer, if she hadn't been murdered mid-morning. Payroll analyst Ramona Anderson may have explained what Kristy knew, if she hadn't been killed that evening.
Central Illinois was in shock. Central Insurance Company blamed the Chief - their ex-Chief Financial Officer, Maria Majors - and her son Nate Lawson, their new security intern. Amateur sleuths Max and Michelle wanted to get involved. Nate Lawson was Max's nephew. The Chief was Max's ex-sister-in-law. Max and Michelle were surprised to find that Central Insurance Company had been dealing with discrimination issues, but they were stunned to learn the details of Central's elite Swingers Club.