MILWAUKEE -
The FBI says the motive behind the shootings at a Sikh temple that left six worshippers dead remains unknown but authorities still haven't identified anyone other than the gunman as being responsible.
FBI Special Agent in Charge Teresa Carlson also told a Wednesday news conference that investigators determined gunman Wade Michael Page died of a self-inflicted gunshot wound to the head after he was shot by police. Authorities previously said an officer had fired the fatal shot.
Carlson says federal officials had not opened any investigation into Page before Sunday's shooting. She says investigators are interviewing dozens of people who have known Page as they work to determine for a possible motive.
Page was deeply involved in the "hate rock" scene. It includes hundreds of performers in the U.S. and Europe, most of them playing metal or punk but with some preferring country, folk and other genres.
The extreme musical subculture is a big part of neo-Nazi circles, offering a way for followers to socialize, recruit new members and raise money.
Page played in several white-power bands with names such as Intimidation One, Definite Hate and End Apathy.
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