Handwritten note written in black ink on blue paper. The note, which contains dozens of small, illustrated hearts around a large heart in the upper center, reads: "Lots of Love."

Card painted with blue paint on the front. The words "Tree of Life" and several Stars of David, hearts, and five-pointed star were drawn with marker. A smiley face sticker was placed on the bottom left edge. An orange sticky note in the shape of a twelve-pointed star with the words "Strength and Unity for ALL" was placed in the center. The back of the card contains the words "Thoughts and Prayers for ALL" on the left, accompanied by illustrations of Stars of David, hearts, and five-pointed stars.

Canvas with "We Are Better Than Hate" painted in orange letters with black border on a white background with black border. Canvas wrapped and stapled to wooden frame.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of pineapple with floral and geometric motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in blue marker. The message reads: "Love not hate." Tape affixed on the bottom edge. Tearing and creasing due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in black marker. The message reads: "We should all remember preaching hate results in hatred. Preach love, and support!"

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.

Post-it note with handwritten message in black marker. The message reads: "There is always hope in the face of despair [despair] and kindness will guide us through." Tape affixed to the upper edge.

White cardboard sign with handwritten message in black ink reading: "Hate and Violence are NOT the Answer." Staining and warping due to exposure to the elements at the Wilkins memorial.

Handmade sign with white graph paper and black marker taped to cardboard, reading: "From Ohio and Oklahoma, you are loved and will not be forgotten."

Folded card with colored pencil illustration. Cover shows four smiley faces, two heart shaped balloons, surrounded by asterisk-shaped stars on a multicolored background. Inside reads: "Our prayers are with you! I hope you are well!" Back reads "2018" and features two heart shaped ballons in the lower center atop a salmon colored background.

Note from a member of The Church at Severn Run in Severn, Maryland. The note is enclosed in an envelope with church letterhead, reading: "The Church at Severn Run: Love Well, Live Jesus, Believe Big!" The note inside reads: "We love you! God is with you always!" The church's contact information is included on the back of the envelope.

Card made by a student from the George Washington University Hillel. The front cover reads: "Hugs" with asterisks on either side. The inside (from right to left) reads: "Sending you messages of hope, love, and comfort from Washington D.C. Love, Alex. May God be with you and your families."

Post-it note with handwritten message in black ink. The message reads: "You are so strong. Thank you for being so strong in the face of evil. Please be more Jewish. We must show our community's great life in the wake of antisemitism. That is the best revenge. Growth. Love. Life."

Post-it note with handwritten message in green marker. The message reads, in Hebrew, "Shalom" (Peace). Illustrated with a green heart, flanked by stars, in the lower center.

Post-it note with handwritten message in pink marker. The message reads: "Our hearts cry with yours for shalom." Signed with a heart, cross, and Star of David.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "May GOD grant you ALL the grace and mercy our human family can minister and let your faith be a reflection of GOD's LOVE for all of us."

Post-it note with hand drawn, abstract illustration in blue marker.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated Nov. 4, 2018 and reads: "Dear Members of the Tree of Life Synagogue, An attack on your community of faith is an attack on all of us. We stand with you from afar, and renounce the hatred that brought that madman to your door. Our pastor, Karla Shaw, will deliver this letter (and many others) as a sign of our solidarity with your community. This is a tangible sign of our prayers for your community- for peace, for protection, for security, for understanding.