Susan Powell with her two sons
A beleaguered Josh Powell — under suspicion for the 2009 disappearance of his wife and fighting an uphill battle for custody of his two young boys — killed himself and his sons on Sunday by setting fire to his Washington state home, officials said.
Calling it a “double murder/suicide,” authorities said late Sunday the blaze that leveled Powell’s Graham home was “very well-planned” and was fueled by accelerants spread throughout the residence.
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The Prime Suspect's Blog 
Glad to see others commenting on this case. I found a WordPress blog that hasn’t been used in awhile but it says it’s the official blog for Susan’s case: http://heartsknitforsusan.wordpress.com/.
Other relevant sites are:
http://www.facebook.com/pages/The-Susan-Cox-Powell-Foundation/235316293180751#!/pages/The-Susan-Cox-Powell-Foundation/235316293180751?sk=wall&filter=1
http://susancoxpowellfoundation.org/Home.aspx
http://www.facebook.com/angelvigils