Post-it note with handwritten message in black ink. The message reads: "Sending love, support, and solidarity." Color bleeding due to exposure to the elements at the Wilkins memorial.

Folded card on brown paper. Two circular stamped imprints visible in the center of both the right and left flaps. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Floral tag from floral arrangement sent by Michelle. The tag reads: "Shalom! Love, Michelle." The message is written in black marker on a printed tag with a green background and floral motifs.

Post-it note with handwritten message in black marker. The message reads: "What happened here will not be forgotten." Signed with a Star of David.

Floral tag from floral arrangement sent by Daniel Mulhall, the Irish ambassador to the United States, on behalf of the people of Ireland. The note is printed on a tag with a beige background from a local florist.

Post-it note with abstract illustration in red marker.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "My prayer- my prayer is for all the people affected to be at peace. Please Lord look after their friends and family, loved ones in this time of need. In God's name I pray. Amen."

Handwritten card from a student at Goddard Middle School in Littleton, Co. The front cover contains the following quote attributed to O.G. Mandino: "Failure will never overtake me if my determination to succeed is strong enough." Illustrated with the image of two stick figures, labeled "strength" and "failure" respectively standing on either side of a wall. The inside reads: "Dear Congregation of the Tree of Life, I am sorry for what happened and I hope everything gets better.

Card with illustration of two dragonflies on the cover. Message affirms the power of love to triumph over hate. The information on the back indicates that this card was purchased in support of UNICEF, the United Nations International Children's Emergency Fund.

Orange card addressed to the Tree of Life Community on the front cover. The inside contains a sincere message of sympathy from a Jewish resident of Erie, Pa.

Card from "Julia L." expressing solidarity with the community.

Post-it note with handwritten message in blue marker. The message reads: "Stay strong [underlined]. If we work together hate can't win! [Heart]. [Heart] Pittsburgh [Heart]. - Stella K."

Post-it note with handwritten message in blue marker. Tape in the upper left corner. The message reads: "This Temple's response to all this hate is beautiful. Hate is not welcome here or anywhere! My blessings to all."

Post-it note with handwritten message in green ink. The message reads: "We cannot change the past, but we can inspire the future. Let what's happened here be a warning to us all that there is no room for hate anymore."

Handwritten note written in black marker on paper reading: "May the light you brought to this world continue to shine. -Fabers."

Floral tag from floral arrangement sent in honor of the congregation at Tree of Life Synagogue. The note is printed on a tag with a beige background from a local florist, Oliver Flower Shop.

Folded card with marker illustration. Cover features illustration of tree with ladder. Interior reads, "We are with you at this sorrowful time. The Beth Chai Congregation of Greater Washington." Back cover reads "I hope you feel better. P.S. We will donate $ to you" with two five-pointed stars.