Even though you won't read them and don't care too surely or you would've known about how the crisis started and 2 major players who caused the crash. Here's some sources 
http://www.investopedia.com/articles/economics/08/fannie-mae-freddie-mac-credit-crisis.asp
http://moritzlaw.osu.edu/students/groups/osblj/files/2013/04/5-17.pdf
Here's Barney frank in 05' oblivious to the  fact that a housing bubble was now coming to fruition.  Typical government incompetence at its finest while economists were already warning a disaster 
https://youtu.be/iW5qKYfqALE
Warnings made previously 
https://youtu.be/LPSDnGMzIdo
Here's a link on the bail in which was signed by the g20  financial stability board I believe and then added into the  Dodd-frank act which to this day is the longest and most complicated bill to ever be passed by the legislature. 
http://www.publicbankinginstitute.org/a_crisis_worse_than_isis_bail_ins_begin