Article Photos: Indiana blast investigation focuses on natural gas



Onlookers try to view the damage that destroyed two homes and made dozens more uninhabitable, Monday, Nov. 12, 2012, in Indianapolis. The explosion killed two people. (AP Photo/Darron Cummings)

Onlookers try to view the damage that destroyed two homes and made dozens more uninhabitable, Monday, Nov. 12, 2012, in Indianapolis. The explosion killed two people. (AP Photo/Darron Cummings)