Feel Good Story: Suicide bomb instructor blows up and takes 22 students with him...

He suffered from premature explosion... 

Via The New York Times:

A group of Sunni militants attending a suicide bombing training class at a camp north of Baghdad were killed on Monday when their commander unwittingly conducted a demonstration with a belt that was packed with explosives, army and police officials said.
The militants belonged to a group known as the Islamic State of Iraq and Syria, or ISIS, which is fighting the Shiite-dominated army of the Iraqi government, mostly in Anbar Province. But they are also linked to bomb attacks elsewhere and other fighting that has thrown Iraq deeper into sectarian violence.
Twenty-two ISIS members were killed, and 15 were wounded, in the explosion at the camp, which is in a farming area in the northeastern province of Samara, according to the police and army officials. Stores of other explosive devices and heavy weapons were also kept there, the officials said.
Eight militants were arrested when they tried to escape, the officials said.
The militant who was conducting the training was not identified by name, but he was described by an Iraqi Army officer as a prolific recruiter who was “able to kill the bad guys for once.”