What was weather that day? Was it day it rained? Rain on road. Slick road? People drive way too fast on road. Some over 50. A split second distraction can be a distress. Hope your brother gets better and no long term affects. Yes, it will be a pain and expensive getting that truck replaced. Hope he had replacement value on truck. Otherwise the adjuster will value truck at current value and that's what you get. After you pay a deductible. Is it $500 or $1,000 if any insurance. Good luck.