Folded card with marker illustration. Cover reads "Stella." Interior reads, "We at Beth Chai Congregation offer our deepest condolences. Wishing full healing to the wounded and peace to those who loves the victims" with two decorative hearts and a Star of David and the name Oona [last name and other personal information redacted for privacy] Md. Back cover features a collage of balloons, cats, and stickers, and the word "LOVE."

Folded card with crayon illustrations. Cover features three human figures. One is standing and smiling. Second is prone and frowning. Third is floating with face obscured. Several balloon-like shapes float toward a colored band along upper margin. Interior reads, "We are here. Right by your side. Keep fighting and good things will come." Back reads "2018" above prone human figure.

Post-it note with handwritten message in blue ink. The note features an illustration of a heart with the numbers "412" written inside.

Handmade card illustrated with multi-colored crayons on light purple paper. The front features a child's illustration of an animal, perhaps a horse, with its mouth open wide in the shape of the letter C. The back features a blob outlined in brown crayon and other undecipherable imagery.

Handwritten note in red ink on white paper glued to black paper tag with gold string. The note reads: "Strong Than Hate. RIP."

Card made by a student from the George Washington University Hillel. The front cover reads: "Sending our Love." The inside reads: "Lots and lots of love. You are in our thoughts, prayers, AND actions. [Six heart symbols]. Continue being strong [heart symbol]. You are not alone [heart symbol].

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated 11/4/18 and reads: "Dear Tree of Life Synagogue, Please accept our heartfelt condolences in the loss of your beloved congregation members, from our congregation at Point Loma Community Presbyterian Church in San Diego, CA. In LA, I grew up living next to a Rabbi (Marvin Bornstein) and his dear family. He was familiar with loss as well, having left medical school in Vienna at the onset of WW II. I learned from his example of love, tolerance and peace.

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

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a heart 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."

Butterfly-shaped cutout with colored with blue and green pencil. The words: "#Stronger Than Hate" appear handwritten in alternating blue and green letters above the butterfly's antennae.

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 the sender's prayer for peace, love, and unity. The church's contact information is included on the back of the envelope.

Zine page with bubble letters and information about the emotional value of hugs. Zine page with cartoons illustrating the emotional value of hugs, including a superhero, labeled "Hugs to the Rescue" and a young couple.

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 messages of encouragement and the sender's prayers for God's blessing. The church's contact information is included on the back of the envelope.

Printed signs in blue and green ink on paper. The signs urge the reader to "Show solidarity" and "stand up for our common values, today tomorrow and always." An illustration of three stylized people raising their hands appears in the upper center, surrounded by the words: "Kindness, Respect, Courage."

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: The church's contact information is included on the back of the envelope.

Large square card from a student at Fountain Valley School in Colorado Springs, Co. Card reads: "Dear members of Tree of Life synagogue, My name is Shi Dao [last name redacted]. I'm from a city in North-East China. I am sorry this tragedy happened. My deepest condolences. May peace be with you. Nov. 5, 2018. From a Chinese in Colorado."

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "May God bring you peace and blanket you with His love during this difficult time."

Rectangular cardboard sign. Front reads, "LOVE They Neighbor" with a heart in purple, green, blue, and read marker. Back includes signatures from the Wolfson children.

Metallic red rose with wire stem attached to a rock base.