Handwritten card from a student at Goddard Middle School in Littleton, Co. The front cover features the following quote: "Let your smile change the world but don't let the world change your smile." The inside reads: "Dear Tree of Life Congregation, I am very sorry for the bad news. I am a social studies student in Goddard Middle School. I know the feeling of losing someone, and it must be a very hard time for you guys. just so you know we'll be there for you guys and you'll always be in our thoughts. Sincerely, Evangeline."

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 congregant at the Holy Angels Parish. The front cover contains a stock illustration of a haloed dove flying in front of Noah's ark. The inside reads: "Tree of Life, I'm sorry that your synagogue has lost many lives on Saturday morning. You are all in my prayers. With love, Maeve [last name redacted] 6th Grade."

Vinyl banner with light blue horizontal bars across the top and bottom with light blue text against a white background. Text reads, "We Love Our Jewish Neighbors" in all-capital san serif font.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear families in Christ, My thoughts and prayers are with you all. Your broken hearts for losing your loved ones are so suddenly happened and only Christ can heal- may His Holy love and joy wrapped you and comfort you. May all sweet, great, and wonderful memories stay close in your [heart symbol], your minds, and souls. Your love to your lost one couldn't be taken away- stay strong and keep faith. God bless you all. Euny [last name redacted]."

Handwritten card written in pencil on paper. The card reads: "Dear Family, Hello my name is Elisha D. I am from Netivot, we stand together with you because a loss for you is a loss for us. May you only see simchas."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Tree of Life members, You have all been in my heart and prayers this past week. It is impossible to imagine what you all must have experienced, but I would hope that your faith and strong community would be very healing at this time. I am so impressed with the response of your congregation- to just keep going, as the Jewish people have done for thousands of years throughout history.

Document with reflections, sheet music, and song lyrics, 9 pages.

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. Due to water exposure at the memorial site, the message in this card has been partially erased. The remaining text reads: "[?] everybody is ok...praying for those...are hurt and kill. [Na]me: Elio age: 10... [Holy Ang]els" CCD."

Post-it note with handwritten message in blue marker. The message reads: "May their memories be a blessing." Signed in Hebrew: [heart] "Miriam."

Handwritten note on the back of a piece of paper with the letterhead of KYW News Radio. The note is very difficult to read due to extensive creasing and fading caused by exposure to the elements at the Wilkins memorial.

Summary: KDKA-TV report providing a history of mass shootings in the Pittsburgh area between 2000 and 2018.

Handwritten note in black marker on paper. The note reads: "Pittsburgh we are all with you." Tearing and staining 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: "Friends, The loss you feel must be beyond my comprehension. I am so very sorry for your tragedy. My prayer is that God will somehow us this to make his face known. I also pray that you will experience emotional and physical healing. These events have reminded me of the frail nature of our earthly bodies. I am confident that God has prepared a plan for us all where we will be freed from our own flesh and all pain will be gone. Love, Blake."

Post-it note with handwritten message in black ink. The message reads: "We are so sorry! Love and Peace. Your neighbors. Gail and Rich."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear friends, My heart and prayers are with all of you as you process your loss and the events in these past few days. May God's presence and comfort be showered on every one of you. I cannot even begin to imagine... I pray for God's grace and blessings. With love, Cheryl [last name redacted]."

Handwritten card in pencil on paper. The front of the card reads: "L'chaim" (to life) in Hebrew. It is illustrated with a Menorah. Color bleeding due to exposure to the elements at the Wilkins memorial.

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.

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 prayers for healing and comfort. The church's contact information is included on the back of the envelope.