The double-Olympic medalist's coach dismisses the doubters.
The Swedish runner burst onto the scene in the past year.
The Australian was shot in the back "for the fun of it".
The "Blade Runner" is now the "Blade Gunner".
He finished the race in under 24 hours.
Spira is making three colors of camo shoes for men and women.
No details yet about how large the 2014 Boston field will be.
The United States won at least one medal in all four middle distance finals.
Younger runners continue to push new boundaries.
He has led his team to a section championships.