Highway. Thousands of gallons of fuel exploding into a fireball. Traffic brought to a standstill for hours. What caused this massive explosion. Tearful testimony. Im sorry. The emotional day in court. A former Police Officer showing remorse for shooting her neighbor. I wish he was the one with the gun and killed me. Will the jury believe it was a case of mistaken identity . And gone wild. An aggressive elk charges into a group of people. Oh, my gosh. Somebody, help. Repeatedly striking a woman with his antlers. A quickthinking hero who rushed in to help her speaking out this morning. Hey, good morning. So many fastmoving developments this morning in the white house whistleblower investigation so lets dive right in. Heres what we know right now as we come on the air. Overnight the u. S. Special envoy to ukraine, kurt volker, stepped down. Volkers name was mentioned in the whistleblower complaint, and he is set to speak to investigators next week. Also this morning, the democrats have is