61.   The attacker was not identified.

62.   The attackers were identified as ethnic Tutsis.

63.   The broadcast did not identify the attackers, but the government said they were supporters of the opposition parties, which are dominated by the Tutsis.

64.   The assailants then forced the victims to drink a bottle of alcohol so that they would get drunk and be unable to identify the attackers, officials said.

65.   The attacker was identified as Mamoru Takuma.

66.   The attacker was identified by police as Mamoru Takuma.

67.   The callers identified the attacker as a Palestinian from the Jebalya refugee camp next to Gaza City.

68.   The delay in identifying the attackers has not been explained.

69.   The Gaza-based Islamic militant group Hamas took responsibility for the bombing, though the attacker was not identified.

70.   The government has yet to identify the attackers.