Premature detonation: it's the jihadist's ever-present fear.

"Premature Blast Kills Philippine Bomber," from [1] AP (thanks to James):

MANILA, Philippines (AP) — A grenade exploded during a town fiesta in the southern Philippines, killing a would-be bomber and wounding four people, police said Thursday.

The police chief in General Santos city, Senior Superintendent Robert Po, said the grenade held by the bomber went off before he managed to penetrate crowds celebrating the city's foundation anniversary late Wednesday. [...]

Po said investigators were working to determine the bomber's identity and affiliation, but suspected he may have been linked to a notorious extortion gang, the Al-Khobar group.

The group, which authorities believe has ties to Muslim extremists operating in the southern Philippines, has been blamed for at least a dozen explosions in the region targeting bus companies and business establishments....