Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The front and back covers of the card contain illustrated Stars of David. The inside reads: "One God... One Love... One World. I am sorry for your pain and suffering. May God Bless you all. Howard E. [last name redacted]." A Star of David appears in the upper center.

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 Friends, I'm at a loss for words to think about the horror you've experienced and the hate that has been directed towards you. Our hearts break with you and I am so sorry this has happened to you. We are with you and are and continue to be praying for you. We are praying for comfort, protection and healing. We love you! Greg and Stephanie [last name redacted] and family."

Post-it note with handwritten message in black marker. The message reads: "Love is stronger than hate." Signed with a heart.

Eight-page folded cardstock program with dark blue background and typed text. Cover features photograph of a stained-glass Star of David. Contents include order of program, song lyrics with musical notation, Psalm 23 in Hebrew, English and English transliteration, Alden Solovy prayer, test of Kel Maleh Rachamim prayer in Hebrew and English, text of Mourner's Kaddish in Hebrew and English transliteration, and text of Oseh Shalom in Hebrew, English and English transliteration.

Post-it note with handwritten message in black ink. The message reads: "We love you and we're with you."

White posterboard folded into a card with a white plant stenciled on the front. Stencil done with sponge and multiple colors of paint. Interior includes a handwritten message and signatures to Tree of Life. Back has a message written in pencil and bleed through from markers.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The envelope contains the handwritten inscription: "God Bless" [heart]. The front cover reads: "Faith is the friend that comes along when things just seem to go all wrong." The inside reads: "My mother and I were so saddened when we heard of the tragedy that occurred. It seems unthinkable that a human being could behave in such a deplorable manner. My mother and I are keeping everyone and their families in our hearts, minds and prayers.

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 love, prayer, and affirmation of God's goodness. 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.

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

Letter from administrators and affiliated staff at The Center for Global Understanding and Peacemaking at Elizabethtown College. The front of the letter is inscribed with letterhead from the The Center for Global Understanding and Peacemaking at Elizabethtown College. Message reads: "Elizabethtown College's Center for Global Understanding and Peacemaking shares our concerns and prayers for your community at this sad and difficult time.

Bright yellow posterboard with handwritten message written in green marker and pencil reading, "We love you neighbors." Embellished with four hands with additional handwritten messages and hearts.

Post-it note with handwritten message in blue marker. The message reads: "May their memories be a blessing. Love [heart] From Charlotte, NC." Tape on the upper edge.

Post-it note with handwritten message in green marker. The message reads: "Shalom" (Peace). Creasing and tearing due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in blue ink. Written in Hebrew, the note contains an adaptation of the biblical verse in 1 Samuel 15:29. Translated into English, the message reads: "The Glory of Judah does not deceive or change His mind..." Color bleeding due to exposure to the elements at the Wilkins memorial.

Card from the Friendship Circle of Illinois. The front cover reads: "To the Jewish community of Pittsburgh sheyichyu (may they live)." The inside reads: "I heard what happened and give my fullest sympathy. I am heartbroken by what happened, and really hope moshiach (the Messiah) will come and you'll be united with your dear ones." Spelling errors corrected for clarity.

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 Tree of Life Synagogue Members, Our prayers are with you during this difficult time. May you find strength and comfort in your faith and fellowship. Our community prays for yours, with love, The [redacted] Family and Point Loma Comm. Presbyterian Church."