Roger Rusack, a longtime University of Minnesota physics professor, has been a part of the search for the elusive Higgs boson particle for two decades. He helped design, develop and tweak a critical particle detector within the massive, 17-mile-long Large Hadron Collider in Geneva, Switzerland, the world's most powerful particle accelerator. His contribution, the electromagnetic calorimeter, measures the energies of photons.
Man run over, killed by semi at Minneapolis scrap metal yard
The accident happened around 9:20 a.m.