Handwritten note written in blue ink on paper. Dated Saturday November 17, 2018 in the upper right corner. Addressed to the people of Pittsburgh and Tree of Life synagogue.

Envelope addressed to Rabbi Jeffrey Myers of Tree of Life. Front cover of the enclosed Hallmark card features floral imagery and says "Thinking of You." Inside reads: "My only connection to each of you is that of a fellow caring, loving human spirit that has the incredible gift of being able to learn and exist with all other living beings on this Earth. Even though that is my only tie to each of you, it is strong enough to share in your sadness and loss..." Continues on the back: "As a community and as a fellow human. May love always conquer hat and fear.

Handwritten note on coloring book paper. The front side features the outlines of two horses, colored in with assorted colored pencils. The note reads: "God be with you all. Love Gemma and Giovina [last name redacted]. 4 year olds." The back features the outlines of a leopard perched in a tree with a squirrel.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Our hearts are with you. The Bolsters, Point Loma."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Tree of Life, We are a Junior High small group from PLCPC. We are sorry for your loss. We are praying for the injured and those friends and family of those who died. We will continue to pray as your community continues to heal. Point Loma Community Presbyterian Church San Diego, CA. Mindy, Allison, Ellis, Mike, Logan, Georgia, Ana, Tessa, Sarah, Quinlan."

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "Don't Stop Believing." The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Piece of notepad paper with a pencil drawing of a flying angel with wings and a halo.

Card with colored pencil and marker illustration. When opened, the card shows a tree in the center with a cross on top of a yellow circle in the center left. It is inscribed with the following message: "The tree of life where more life can come to be bet[t]er" and is signed "Samuel [last name redacted]. Risd TX."

Post-it note with handwritten message in blue marker. The message reads: "R.I.P. Dr. Rabinowitz."

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of a haloed dove flying in front of Noah's ark.

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 blue marker. The message reads: "Yes, we miss you with our hearts, Jerry." Signature illegible.

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

Oral history of Tim Crossen, recorded as part of the Meanings of October 27th Oral History Project.

Envelope and floral tag addressed to Jerry Rabinowitz. The envelope reads: "Jerry" and is illustrated with a heart and tree with barren branches. The tag features an illustration of a sheep with wildflowers growing out of its head. The tag contains a personal message to Jerry and features an illustration of a grass field with tree, large heart, and flowers in the lower center.

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 is dated October 28, 2018 and reads: "Dear Friends, Peace to you. May you live in the love, joy, and kindness of the God of Abraham, Isaac, and Jacob. God is on the throne, always. Harry [last name redacted]." The church's contact information is included on the back of the envelope.

Printed poster in blue, white, and black from the ACLU (American Civil Liberties Union). The poster reads: "We the People" and features an illustration of people in silhouette raising their hands upward. The reverse reads: "We the People ACLU" and contains a repeating word pattern featuring the various marginalized groups the ACLU serves.

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 the stock signature: "From your friends at West Allegheny Middle School."