The SVFD responded to an MVA on Interstate 40 during a snowstorm. The roads were snow and ice covered. All members and apparatus were in the emergency lane with the first accident victims. A tractor trailer‚ traveling over 50mph lost control and jackknifed. The tractor trailer first struck Firefighter Waddell’s POV. He was in front of it. His daughter was ejected from the vehicle before the vehicle came to rest. Firefighter Glenn Hensley and his POV were struck next. The impact sent him 130′ further down the highway and caused his pickup to become airborne‚ flip 360 degrees and ejected his son (Now an employee at SVFD) who had been sitting in the vehicle. Firefighter Pierson was pushed into the rescue truck as Firefighter Hensley’s truck struck it. Results: Firefighter Waddell-killed in the line-of-duty; Firefighter Waddell’s daughter-injured; Firefighter Hensley-seriously injured; Firefighter Hensley’s son-injured.