DaybreakNewsState News Dayton Memorial Day Tornadoes Among Costliest Insured Losses in Ohio History by Josh Colletta August 19th, 2019 written by Josh Colletta August 19th, 2019 The Ohio Insurance Institute says the current, conservative estimate of $480 Million is likely to continue growing. Share this story2Shares Josh Colletta Josh is a producer and the news director at htv | 1. He's a former radio guy with many passions and skills, some of which are occasionally useful.