The man alleged to be behind a hate-fueled killing spree may now be facing the death penalty.

Frazier Glenn Miller has been accused of entering two separate Jewish community centers in Overland Park, Kansas and opening fire.

The incidents left three innocent people dead and the residents of Overland Park in disbelief.

The victims were 69-year-old William Lewis Corporon, his 14-year-old grandson Reat Underwood, and 53-year-old Terri LaManno.

Miller was seated in a wheelchair as he was escorted into the courtroom for his initial court appearance on Wednesday.

He was seen wearing a long black garment, which a spokesman for the Johnson County jail explained was a “suicide prevention smock.”

The 73-year-old suspect was placed in a closed circuit booth, where he requested a public defender. He was granted free representation by the judge. Miller’s bond is set at $10 million.

Miller faces a capital murder charge for the deaths of Corporon and his grandson Underwood and a first degree murder charge for the death of LaManno.

The capital murder charge is a significant one because it raises the possibility that the suspect could be given the death penalty if convicted.

White supremacist charged in Kansas City-area shootings appears in court: http://t.co/P3yuDl4MdD (Photo: AP) pic.twitter.com/iNgjwA6nZQ

— CBS Evening News (@CBSEveningNews) April 16, 2014

Miller, who is also known by the alias Cross, has a long history of anti-Semite and white supremacist activities.

He formed a KKK group during the 1980s of which he was the grand dragon. He also founded a second white supremacist group known as the White Patriot Party.

Miller was known to write hate-filled comments on various white supremacist forums across the web and would even write letters to a hapless editor filled with content the man described as “just too vile” to put in print.

The racist history of the suspect speaks strongly enough as to the motivation behind the killings. Because of the kind of man the suspect is, it is absolutely clear why he would have committed these heinous acts.

#Kansas shooter Miller was one of the most prominent and notorious #WhiteSupremacists in the United States > http://t.co/7YhrTlnjC9

— ADL (@ADL_National) April 16, 2014

Miller had previously testified against other white supremacists in a plea agreement on a 1988 sedition charge. It’s been reported that since this action, other supremacist groups and individuals did not want to associate with him due to feelings of betrayal.

That may have changed with the charges Miller now faces. He is reportedly being “congratulated” by hate groups on various internet sites.

In 2012, we interviewed Frazier Glenn Miller, accused KC Jewish Center shooter, chilling reading then &in retrospect http://t.co/4QvEAbatWR

— Josh Marshall (@joshtpm) April 15, 2014

Image via YouTube