Suicide Bombers - In Islam, several things are clear:

•Suicide is forbidden. "O ye who believe!... [do not] kill yourselves, for truly Allah has been to you Most Merciful. If any do that in rancour and injustice, soon shall We cast him into the Fire..." (Qur'an 4:29-30).

•The taking of life is allowed only by way of justice (i.e. the death penalty for murder), but even then, forgiveness is better. "Nor take life - which Allah has made sacred - except for just cause..." (17:33).  More, -  Suicide Bombers in Islam - Islam
What the Muslim world believes, on everything from alcohol to honor ... washingtonpost