A Johnson County jury took less than two hours on Monday to find F. Glenn Miller Jr. guilty of capital murder in the shooting deaths of three people outside Jewish facilities last year in Overland Park.

Miller, a 74-year-old avowed anti-Semite, had argued that the shootings were justified because he was trying to stop “the Jewish genocide against the white race,” although those he killed were Christians.

The jury also found him guilty of three counts of attempted first-degree murder for shooting at other people outside the Jewish Community Center and Village Shalom care center.

Jurors convicted him of aggravated assault for pointing a shotgun at a woman and asking whether she was Jewish. When she answered no, he put his gun away and left.

They also found him guilty of firing numerous bullets and shotgun rounds into the community center.

When he heard the verdict, Miller said: “I believe the fat lady just sang.”

The resident of Aurora, Mo., who also is known as Frazier Glenn Cross Jr., fatally shot Terri LaManno, 43, William Corporon, 69, and his grandson, Reat Underwood, 14, on April 13, 2014.

With the capital murder conviction, the trial moves to a penalty phase, during which the same jury will be asked to decide whether Miller should be sentenced to life in prison or death.

Representing himself during the six-day trial, Miller gave a closing argument in which he described his beliefs that Jews are attempting to replace the “white race” with people of color. To begin his argument, he wrote, “Diversity is a code word for white genocide!” on a whiteboard.

Miller said that 48 years ago, his father first instilled in him the idea that Jewish people were seeking the destruction of white people. After years of political efforts, he decided that “armed revolution was my only option.”

He had hoped he would be considered a martyr and would die “with a smile on my lips” over what he did.

In his closing statement, Miller asked the jury to find him not guilty, saying he took his actions to protect “our people.”

In his rebuttal to Miller’s argument, District Attorney Steve Howe said Miller took the lives of three people who were only trying to live peacefully. He told jurors that a “mountain of evidence” proved Miller was guilty of capital murder and other charges.

“Clearly his mission was to kill as many people as possible,” Howe said.

Jurors left the Johnson County courtroom at about 2 p.m. on Monday to begin deliberating. Word arrived at about 3:45 p.m. that a verdict had been reached.

Prior to closing arguments, District Judge Kelly Ryan prepared instructions to the jury while the jury was not present. Miller continually objected to the instructions, including ones routinely used in murder cases. At one point, Ryan had Miller removed from the courtroom for being argumentative and disruptive.

The judge rejected 17 instructions proposed by Miller because they were not supported by the law. In one, Miller asked that jurors be told to vote not guilty if they found the judge’s actions during trial were “Communist-like or tyrannical.”