Police have arrested a man with a long history of involvement in racist and neo-Nazi groups for the shooting deaths of three people outside two separate Jewish community centers near Kansas City, Missouri on Sunday.

According to reports, authorities have charged Frazier Glenn Cross, 73, with first degree murder after he opened fire at a Jewish Community Center in the town of Overland Park, where he killed a man and his grandson in the parking lot. Following that shooting, it appears Cross drove a short distance to a retirement home, also with ties to the Jewish community, and again open fired where he killed a woman.

After being taken into custody by police, numerous witnesses said Cross could be seen and heard shouting, "Heil Hitler!" from the back of a patrol car. Police would not confirm that, but Miller has a well-documented past as a white supremacist.

The Associated Press reports that though "the suspect was booked under the last name Cross, he is probably better known as Frazier Glenn Miller. A public records search shows he has used both names, but he refers to himself on his website as Glenn Miller and went by the name Frazier Glenn Miller in 2006 and 2010 campaigns for public office."

As the New York Times reports, Miller "is a former Ku Klux Klan leader with a history of anti-Semitism and racism, according to the Southern Poverty Law Center, a civil rights organization that tracks hate groups." The SPLC says Miller has a long public history as a racist and anti-semite and was the founder and grand dragon of the Carolina Knights of the Ku Klux Klan. He never hid his views and even ran for U.S. Senate in 2010 on a white supremacist platform.

According to the SPLC file on Miller, a radio ad for the senate campaign included this language: "White men have become the biggest cowards ever to walk the earth. The world has never witnessed such yellow cowards. We’ve sat back and allowed the Jews to take over our government, our banks, and our media. We’ve allowed tens of millions of mud people to invade our country, steal our jobs and our women, and destroy our children’s futures. America is no longer ours. America belongs to the Jews who rule it and to the mud people who multiply in it.”

Monday is the beginning of the Jewish Passover holiday, though law enforcement refused to say whether that fact may have played any role in the killings. According to Miller's wife, the last she heard from her husband was when he called from an area casino on Sunday morning to say "that his winnings were up."

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