The service for 14-year-old Reat Griffin Underwood and his grandfather 69-year-old Dr. William Lewis Corporon started at 3 pm April 18.
Their lives were celebrated during a memorial service in the main sanctuary of the United Methodist church in Leawood, Mo.
Terri Lamanno was the third victim in the shooting a service honoring her took place April 17.
The US Attorney General Eric Holder also attended an interfaith service in Overland Park the yesterday.
He told the crowd the shootings have cast a dark shadow over the nation and that Americans must stand united in the face of hate-fueled violence.
The suspect in the shootings Frazier Glenn cross also known as Glenn Miller is from Aurora.
Miller is currently in custody.
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