GRAY COUNTY, TEXAS — A “shattering and visceral” Sunday afternoon has left the Texas Panhandle in a state of profound mourning following a catastrophic head-on collision on Interstate 40. Authorities have officially identified the deceased as 81-year-old Dorothy Guinn of Pampa and 60-year-old Ester Everson of Amarillo. The “unexpected and violent” crash, which occurred just…