Explosion Kills One, Hurts Three By: Kevin Thompson Vol: 42 | No: 44 | Published on: November 20, 2015 What caused a huge fireball at a Fresno-area worksite, taking the life of one worker and seriously injuring three others? That's what Cal/OSHA is working to find out. Read More...This content is for premium subscribers. To read please login or subscribe below.Subscribe Log In Username or Email Address Password Remember Me