An attempt to kill bedbugs with gasoline led to an explosion and house fire Sunday, according to the Omaha Fire Department. Firefighters said only one person was taken to the hospital with burns. Officials said the injured man was trying to use gasoline to kill a bedbugs infestation. They said the vapors were likely ignited by the pilot light on the water heater, causing the explosion.  Two other people made it out of the home uninjured. The fire department said the house was severely damaged by the pressure of the blast.