The gunman, 73-year-old Frazier Glenn Miller Jr. of Aurora, Missouri, originally from North Carolina, was arrested during the attack and was subsequently tried, convicted of murder and other crimes, and sentenced to death.

[5] The shootings began at around 1:00 p.m. (CDT) at a rear parking lot of the Jewish Community Center of Greater Kansas City, near the entrance to the White Theater.

[6] The shooter then fired at two males, 69-year-old[7] William Lewis Corporon and his 14-year-old grandson, Reat Griffin Underwood, who were hit by gunfire as they pulled into the parking lot inside their car.

Multiple staff members, one with paramedic training and the other with military medical experience, attempted life-saving measures on the victims, but were ultimately unsuccessful.

The gunman was arrested at 2:45 p.m. outside Valley Park Elementary School by two police officers who identified him in his car using tips given by witnesses.

A police official confirmed that the gunman used a Remington Model 870 shotgun in the shootings, and several other weapons, including a handgun, were also recovered from his car.

[4][15] Several items were seized from the suspect's home in Aurora, Missouri, including three boxes of ammunition, a red shirt with a swastika symbol, antisemitic publications (such as Hitler's Mein Kampf), a list of kosher places, directions to synagogues, and a printout of the KC Superstar competition at the community center.

Miller was an Aurora, Missouri, transplant from North Carolina, a neo-Nazi, practicing neo-Pagan beliefs,[19] and former politician who founded and formerly led the Carolina Knights, a paramilitary organization with ties to the Ku Klux Klan in the 1980s, with the organization later being disbanded by the Southern Poverty Law Center, after which he founded another group called the White Patriot Party.

In the late 1980s, he was sentenced to three years in prison for weapons charging and plotting to assassinate Morris Dees, the leader and co-founder of the Southern Poverty Law Center.

In late March, Miller visited an emergency room and was diagnosed with emphysema, being told he had a 50 percent chance of living three additional years.

He was charged with one count of capital murder, covering all three deaths because the crime was "part of a common scheme or course of conduct."

The request was approved by Johnson County District Court Judge Kelly Ryan after he expressed concerns about Miller's ability to assist his attorneys.

[49] A 14-year-old boy, Reat Griffin Underwood, and his 69-year-old[7] grandfather, physician William Lewis Corporon, were killed at the Jewish Community Center.

A 53-year-old woman, Terri LaManno, who was an occupational therapist in Kansas City, was killed at the parking lot of Village Shalom, where her mother resided.

"[53] Other politicians issued statements in which they offered their condolences to those killed in the shooting and decried the antisemitic motivations of the shooter.

Over 1,300 people attended the service, including U.S. Attorney General Eric Holder, U.S. Rep. Emanuel Cleaver and Kansas Governor Sam Brownback.

Multiple faith leaders from the surrounding area spoke during the service, which culminated with a symbolic show of unity as the clergy, elected officials and members of law enforcement in attendance were asked to gather on the stage as three candles were lit in memory of the victims.

[56] John Lewis has put out a statement: It is deeply tragic that such senseless brutality should occur on the eve of Passover, the time when Jews all over the world remember their liberation from slavery in Egypt thousands of years ago.