Authorities Zeroing News Today

>> eva pilgrim, thank you. there is much more ahead on "world news tonight" this tuesday. we have breaking developments in the manhunt for two suspected killers. authorities zeroing in on the scene. we have new reporting coming in at this hour. they were wanted for three murders in two states. also the warning tonight about an invisible danger. the store employee smelling propane. getting out just moments before flames burst open, blanketing the floor. and this question for you. do you rec...