George Sutherland, Miller v. Union Pacific Railroad Company…
“ The rule is settled by innumerable authorities that if, injury be caused by the concurring negligence of the defendant and a third person, the defendant is liable to the same extent as though it had been caused by his negligence alone. 'It is no defense for a wrongdoer that a third party shared the guilt of the same wrongful act, nor can he escape liability for the damages he has caused on the ground that the wrongful act of a third party contributed to the injury.' Choctaw, O. & G.R. Co. ”
