This is not news. This has been reported extensively in books for the past 15 years. Lawrence Wright in The Looming Tower detailed how Bin Laden USED to be wealthy, but once he left his family and spent his inheritance on Al Qaeda, recruiting, and training in the 90's and early 2000's, he was broke. The media, for some reason until now, failed to report this important fact and continued portraying Bin Laden as a charismatic billionaire who could go on funding attacks against the U.S. for decades. It's all hogwash.
Read: "Al-Qaeda leader: Bin Laden spent wealth on jihad", USA Today (AP)