One man was killed and another injured Monday morning in a head on collision on US 70 about 15 miles east of Broken Bow. Oklahoma troopers say 22 year old jUan Bolanos Lopez of DeQueen Arkansas veered to the left and hit an 18 wheeler head on, and both vehicles burst into flames. Bolanos-Lopez was pronounced dead at the scene and the semi-driver, 44 year old William Beam of Valliant was hospitalized with serious injuries.