One cannot help but be astounded at the crooked efficiency of the previous regime.

Nine people have been killed in a mass shooting in Dayton, Ohio, police say, adding that the assailant was also shot dead by responding officers.

Wife of gunman who killed 49 people at an Orlando gay nightclub knew of his plans for the attack and could soon be charged in connection with the deadliest mass shooting in modern US history, a law enforcement source said on Tuesday.

The father of a gunman who killed 50 people in an Orlando gay club says he did not know that his son had "hatred in his heart".

Three people linked to the couple responsible for December's mass shooting in San Bernardino, California are arrested on conspiracy, marriage fraud and other charges unrelated to the massacre, US prosecutors said.

A friend of one of the San Bernardino attackers has been charged in connection with the mass shooting that killed 14.

At least 14 people were killed in a shooting at a holiday party in California, triggering a massive manhunt which ended when police shot dead two heavily armed suspects -- a man and a woman -- on a quiet residential street.