Here is something from the local NORMAN, Okla news on the school football game bombing..
Sources Identify TATP As Component Of Bomb
TATP Same Component Used By Infamous Shoe Bomber
POSTED: 9:56 pm CDT October 4, 2005
UPDATED: 10:11 pm CDT October 4, 2005
NORMAN, Okla. -- Sources confirmed Tuesday night that at least one of the components in the bomb used by Joel Henry Hinrichs III Saturday night was a product called TATP.
Technically, TATP is triacetone triperoxide. However, it's called the 'Mother of Satan' by Islamist extremists. Experts say it is made by mixing common household items such as drain cleaner and bleach to create a white powder with a strong smell.
It's so volatile that it can explode even if it's merely dropped. It can even explode spontaneously, experts say.
There have been very few reports of TATP being used in the United States; however, there have been more documented cases overseas -- including Richard Reid, who was arrested after he used TATP in his shoe and tried to light it on a flight.
The FBI is testing materials from the OU student's backpack, and from Hinrichs' apartment. Sources said a chemist from FBI headquarters was flown to Oklahoma to help with the gathering of evidence to be used for testing.
http://www.channeloklahoma.com/news/5058347/detail.html