Thanks Brazil
wow.Nice. thanks

[link to www.chron.com]

last sentence of article-

Authorities said the cause was either bottled cooking gas that leaked into a space under the floor or natural methane formed by the landfill beneath the mall.



[link to articles.orlandosentinel.com]

First sentence of article

SAO PAULO — Investigators Thursday blamed what they said was the improper installation of liquid petroleum gas lines for the explosion

Sounds like a cover-up of some sort.
makes me go Hmm...?