Folded card from a student at Fountain Valley School in Colorado Springs, Co. Cover features a large peace sign. Inside reads: "Dear member of Tree of Life, I am a Chinese student who study in FVS. I heard this bad event this morning. I feel sorry for your lost. We will support you any time. Best wishes, Iihan [last name redacted]." Illustrated with Star of David.

Post-it note with handwritten message in green marker. The message reads: "You are not alone. [Heart]."

Post-it note with handwritten message in blue ink. The note is written in Hebrew. Translated into English, it reads: "Blessed is the true judge." Color bleeding due to exposure to the elements at the Wilkins memorial.

Card on red paper from three students [last names redacted] at Magen David Yeshivah High School in Brooklyn, Ny. The upper flap inside is illustrated with a large heart, surrounded by smaller hearts, and two Stars of David. A sun appears on the left, labelled with the quote: "after the rain, the sun shall shine through." The card ends: "GET WELL SOON! [Star of David]."

Card with pre-printed message reading, "'Sorry is not a big enough word to express the concern we feel for you." Interior includes handwritten signatures and messages from various members of the staff."

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a leaf with 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 black marker. The message reads: "Love is stronger than hate." Signed with a heart.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To GOD's people in the Tree of Life Synagogue, Deep love and care from hurting hearts and encouragement in the difficulties every day. May the deep love of our GOD sustain you, strengthen you and give you peace. May GOD's deep shalom surround you, Chris and Martha (last name redacted), Point Loma Community Presbyterian Church San Diego, California."

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "I am here in this moment" surrounded by arrows and other geometric symbols. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Laminated text of the Catholic "Beatitudes" blessing printed on paper with light blue checkered pattern in background. A yellow band with the words "The Beatitudes" appears in the upper center; blue and purple clouds covering the sun appear to the left. A handmade paper medallion with five decoratively rolled spirals and a silver string has been taped to the front.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a bird with a leaf in its mouth 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."

Card with illustrated sunflower. Inscribed in ink with the following message: "Hate cannot break our Steel City." Signed: "equal [=] love [heart] Star of David."

Folded card with marker and colored pencil illustration. Cover features Star of David inside heart. Interior features illustrations of heart inside rings, two hands reaching out, and tree with name "Deliliah Lieber."

Printed tag with a photograph of Melvin Wax. The tag reads: "In Memory of Melvin Wax." Creasing and staining due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message with blue marker. The message reads: "Stronger Than Hate!" Illustrated with a heart and signed: "TR."

Diamante poem by Jesse [last name redacted], which was sent with the materials from Emergency Ministry Services, a faith-based training and disaster response NGO in San Juan Capistrano, Ca., affiliated with the Orange County Church on the Rock. A diamante poem is a seven-line unrhymed poem which is shaped like a diamond.

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 contains words of support and prayers for God's love. The church's contact information is included on the back of the envelope.

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 affirms the sender's belief that we are all God's children. The church's contact information is included on the back of the envelope.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.