Fire officials in Waukegan, Illinois say all three men killed in the deadly explosion at A-B Specialty Silicones last Friday were from Kenosha County. An evacuation had just been started when the blast happened. Fifty-seven-year-old Jeff Cummings of Kenosha, 53-year-old Byron Biehn of Brighton and 29-year-old Allen Stevens were killed. A fourth worker is missing and presumed dead but hasn’t been identified. Cummins was a supervisor at the plant who ran back inside to make sure his guys got out — when the explosion killed him.