(April 22, 2020, 9:25 AM EDT) -- COLUMBUS, Ohio — A retail natural gas and electricity supplier and a company that it controls and manages sued a former employee in Ohio federal court on April 20, alleging that the defendant violated the terms of a separation agreement by misappropriating confidential and trade secret customer information (Interstate Gas Supply Inc., et al. v. John Legere, No. 20-2005, S.D. Ohio)....