INSIDE EDITION is learning more about the white supremacist accused of killing three people at two Jewish facilities outside Kansas City, Kansas.
This is what he said as he's taken away, "Heil Hitler!"
For decades, he's spouted white supremacist rage.
Across the country, these murders have cast a pall over the first day of Passover. In New York City's Upper East Side, police are on duty outside Temple Emanu-El to ensure everyone's safety.
Miller's anti-Semitic activities have been tracked for years by Heidi Beirich of the Southern Poverty Law Center.
Beirich told INSIDE EDITION, “This man is so hateful and his beliefs are so evil, that violence makes a lot of sense. We have a guy who's 73, with severe emphysema. Maybe he decided this was going to be his last shot for the revolution."
Watch Beirich's Interview with INSIDE EDITION
None of the three people shot dead on Sunday were Jewish.
Dr. William Corporan and his 14-year-old grandson were gunned down in the parking lot of the Jewish Community Campus of greater Kansas City. The boy was there to audition for a show called "Kansas City Superstar."
Mindy Corporan lost both her father and her son to this tragedy. Her grief is beyond measure.
Mindy said at a press conference, "I know that God did not do this, I know that there are evil, evil actions. It was a horrible act of violence and my dad and my son were at the wrong place at the wrong time for a split second."
The third victim, 53-year-old Terri LaManno, was shot dead while visiting a loved one at the nearby Village Shalom senior living facility.
Three people who were strangers to Frazier Glenn Miller, killed for no reason at all and words of hate from a monster accused of a senseless crime will haunt us forever, "Heil Hitler!"