That's terrible looking. The truck pulling the fiver looks pretty tore up, but the passenger compartment might have been minimally impacted. Hoping that nobody was seriously hurt.
This is purely a guess, but it looks like the TV/FW might have been following too closely and hit the rear of the truck. But who knows, it might have been a lane change error by one of the other parties or 100 different reasons.
2016 Ford F350 Turbo Diesel SRW 4x4
2017 Grand Design Reflection 297RSTS
2013 Ford F350 Turbo Diesel SRW 4x4 (Destroyed by fire - 8/29/16)
2014 Grand Design Reflection 337RLS (Destroyed by fire - 8/29/16)