Card made by a student from the George Washington University Hillel. The card features a Star of David and reads: "To the Pittsburgh community, We are a city built on steel and kindness and held up by a thriving Jewish community. I miss my home, my city so much right now, but I know that you are strong. I send all my love."

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 prayer and encouragement. The church's contact information is included on the back of the envelope.

Note addressed to Jerry Rabinowitz written on the back of a business card from Doug [last name redacted], a certified Pilates instructor in the Pittsburgh area.

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.

Printed label which reads: "Thinking of You. Liberty K-5 students." The label is taped to a piece of clear cellophane.

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.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "We are thinking of you and hope you may find peace during this tough. You and your families are in our thoughts. I know God is thinking of you and will keep you protected in his hands while you go through this. It is not fair and we won't understand why this happens. It is terrible and God doesn't give us more than we can handle but it sure feels that way sometime. Just keep peace in your heart and forgiveness for this senseless act.

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.

Clear glass cylindrical vase with a bouquet of orange, white, and purple synthetic flowers. Bouquet is bound with green plastic ring and string of silver plastic gemstones.

Folded card on pink paper. Blue and yellow staining throughout, particularly around the central crease. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Post-it note with handwritten message in blue ink. The message reads: "We love you. You are all so strong." Signed with a heart. Color bleeding due to exposure to the elements at the Wilkins memorial.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dearest brothers and sisters of faith, Words cannot express the sadness and rage we feel in what has happened in your community. May God grant you His peace- as only [underlined] He [underlined] can do and know our love and prayers are with you. In love, Jolene and Dave [last name redacted] Point Loma Pres- San Diego, Ca."

Clear ribbed glass bottle with packing tape around base. Dirt and small leaf stuck to tape. Bottle contains a variety of synthetic flowers and greenery including sunflowers, oak leaves, grass, and glitter-covered poinsettias.

Post-it note with handwritten message in green marker. The message reads: "We will never forget. Love conquers Hate [heart]."

Metal sculpture in the shape of a tree feature two-lobed fan-shaped leaves. Sculpture is attached to a circular base and tied with a gold ribbon.

Post-it note with handwritten message in black marker. The message reads, in Hebrew and English: "Rest in Peace." Signed by Rabbi Fred Pomerantz.

Blue card with a Star of David filled with flowers outlined in gold and silver ink on the front cover. The inside contains a lengthy, heartfelt letter from a sender identifies themselves as "an angry college student who wants a change" from Pittsburgh.

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: "You are God's chosen people. He loves you so much and so do we. We pray that love wins in your synagogue every day. God bless, The Church at Severn Run." The church's contact information is included on the back of the envelope.

Condolence card from First Baptist Church, Berkley in Norfolk, Va. Light blue cover with floral pattern inscribed with the stock message: "Thinking of you with extra special care during this time when memories are stirred and the greatness of your loss can't help but felt afresh." Personalized message on the left flap reads: "We are deeply saddened by your loss. Our prayer is that you will feel the peace and comfort of the Lord in this time of need. May your hearts be lifted and unity forever flow.