Learned via a fellow Soldiers Angel member that Anysoldier.com has an update by a fellow soldier from Sgt. Milkin's unit.
If you go to the Anysoldier.com site http://anysoldier.com/ and click on "Where to Send", it says on that page
July 22:If you read only one update today, read This one" (and click on the "This".)
They also have links to more articles about this tragedy, and a link to a Google listing that has more articles.
And the soldier's update on Anysoldier has more specific information on donations.