The Florida Highway Patrol says a 28-year old man was killed in a single vehicle traffic crash early Saturday morning in Santa Rosa County. Troopers say Mason Tobin of Pace was on Chumuckla Highway near Willard Norris Road about 5:10 a.m., when his S.U.V. went off the road and hit a tree. Tobin was airlifted to Sacred Heart Hospital where he was pronounced dead.