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Michael and Desiree Davis, the parents of Claire, at left, hold up candles with thousands of others at the celebration of life memorial service held for their daughter at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Behind them at left is Governor John Hickenlooper. Thousands of friends, family, students, and members of Claire's equestrian community turned out to pay tribute to Claire who was shot during the Arapahoe High School shooting in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_8407 )

Michael Davis, middle, lights a candle with his wife Desiree, right, and Reverend Steve Poos-Benson, left, as they prepare to hold up candles with thousands of others at the celebration of life memorial service held for their daughter at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Behind them at left is Governor John Hickenlooper. Thousands of friends, family, students, and members of Claire's equestrian community turned out to pay tribute to Claire who was shot during the Arapahoe High School shooting in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_DSC_7572 )

Students from Arapahoe High School and thousands of friends, family, parents, students and members of Claire's equestrian community turned out to pay tribute to Claire Davis at the celebration of her life memorial service held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_8032 )

Michael Davis, with his wife Desiree by his side, addresses a packed auditorium during the celebration of her life memorial service held for their daughter Claire Davis at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_7887 )

Claire Davis' parents Michael and Desiree at the celebration of life service for the Arapahoe High School shooting victim held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. (Photo by Robert D. Tonsing/Courtesy of the Davis Family) ( Memorial service for Arapahoe High School shooting victim Claire Davis held at the National Western Stock Show Events Center in Denver, Co. )

Students from Arapahoe High School and thousands of friends, family, parents, students and members of Claire's equestrian community turned out to pay tribute to Claire Davis at the celebration of her life memorial service held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_7740 )

Friends of Claire Davis sing Amazing Grace during a celebration of her life memorial service held for the 17 year old at at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_8259 )

Students from Arapahoe High School and thousands of friends, family, parents, students and members of Claire's equestrian community turned out to pay tribute to Claire Davis at the celebration of her life memorial service held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_7950 )

From left, Senator Michael Bennett, Governor John Hickenlooper, Alex Chapman and Desiree and Michael Davis during the celebration of life service for Claire Davis, the Arapahoe High School shooting victim held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. (Photo by Robert D. Tonsing/Courtesy of the Davis Family) ( Memorial service for Arapahoe High School shooting victim Claire Davis held at the National Western Stock Show Events Center in Denver, Co. )

Thousands turned out for a celebration of life service for Arapahoe High School shooting victim Claire Esther Davis held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_7831 )

Students from Arapahoe High School and thousands of friends, family, parents, students and members of Claire's equestrian community turned out to pay tribute to Claire Davis at the celebration of her life memorial service held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_8287 )

Students from Arapahoe High School and thousands of friends, family, parents, students and members of Claire's equestrian community turned out to pay tribute to Claire Davis at the celebration of her life memorial service held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_7757 )

Students from Arapahoe High School and thousands of friends, family, parents, students and members of Claire's equestrian community turned out to pay tribute to Claire Davis at the celebration of her life memorial service held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Claire was killed during the shooting at Arapahoe High School in Centennial in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_7914 )

Claire Davis' horse trainer Rebecca Johnson, right, holds the reins of Claire's horse Graphite as her mother Desiree takes the saddle and pets the horse during the celebration of life service for Arapahoe High School shooting victim Claire Esther Davis held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. (Photo by Robert D. Tonsing/Courtesy of the Davis Family) ( Memorial service for Arapahoe High School shooting victim Claire Davis held at the National Western Stock Show Events Center in Denver, Co. )

Claire Davis' horse trainer Rebecca Johnson, far right, holds the reins of Claire's horse Graphite as her parents Desiree and Michael Davis, left, get prepared to take the saddle and reins during the celebration of life service for Arapahoe High School shooting victim Claire Esther Davis held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Thousands of friends, family, students, and members of Claire's equestrian community turned out to pay tribute to Claire who was shot during the Arapahoe High School shooting in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_DSC_7526 )

Claire Davis' horse trainer Rebecca Johnson, right, holds the reins of Claire's horse Graphite as her mother Desiree takes the saddle and pets the horse during the celebration of life service for Arapahoe High School shooting victim Claire Esther Davis held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Thousands of friends, family, students, and members of Claire's equestrian community turned out to pay tribute to Claire who was shot during the Arapahoe High School shooting in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_DSC_7551 )

Governor Hickenlooper signs the jump placard during the celebration of life service for Claire Davis, the Arapahoe High School shooting victim held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. (Photo by Robert D. Tonsing/Courtesy of the Davis Family) ( Memorial service for Arapahoe High School shooting victim Claire Davis held at the National Western Stock Show Events Center in Denver, Co. )

Michael and Desiree Davis, the parents of Claire, at right, are comforted by Colorado governor John Hickenlooper, second from left, and Senator Michael Bennet, left, as they hold up candles with thousands of others at the celebration of life memorial service held for their daughter at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Behind them at left is Governor John Hickenlooper. Thousands of friends, family, students, and members of Claire's equestrian community turned out to pay tribute to Claire who was shot during the Arapahoe High School shooting in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_DSC_7575 )

Michael and Desiree Davis, the parents of Claire, at right, are comforted by Colorado governor John Hickenlooper, second from left, and Senator Michael Bennet, left, as they hold up candles with thousands of others at the celebration of life memorial service held for their daughter at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. Behind them at left is Governor John Hickenlooper. Thousands of friends, family, students, and members of Claire's equestrian community turned out to pay tribute to Claire who was shot during the Arapahoe High School shooting in December. (Photo By Helen H. Richardson/ The Denver Post) ( cd02CLAIREMEMORIAL_HHR_8404 )

Claire Davis' family and boyfriend Alex Chapman, far left, during the celebration of life service for the Arapahoe High School shooting victim held at the National Western Stock Show Event Center in Denver, Co on January 1, 2014. (Photo by Robert D. Tonsing/Courtesy of the Davis Family) ( Memorial service for Arapahoe High School shooting victim Claire Davis held at the National Western Stock Show Events Center in Denver, Co. )