Robert Gilman

Robert Gilman, a professional meteorologist and founder of Precision Weather Forecasting Inc., was called by the prosecution to establish the weather conditions at 34 Fairview Road on the night O'Keefe died. Drawing on data from three nearby stations — Blue Hill Observatory, Logan Airport, and Norwood Airport — Gilman testified that while the region was in the opening phase of a historic blizzard that would ultimately deposit 23.8 inches of snow, only trace accumulation had fallen by midnight, the ground was frozen solid, temperatures were dropping through the low 30s, and the vast majority of snowfall came after 6 a.m.