One-page flyer with typed text in multiple colors. Lists featured scholars and presenters for conference. Footer contains logos of sponsoring organizations.

Post-it note with handwritten message in black marker. The message reads: "Sending love from Detroit, MI." Tape on the upper edge.

Page of typed text on off-white paper. Features illustration of a lotus blossom. Details speakers at program.

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

Flower pot covered in green burlap and tied with raffia ribbon. Pot contains blue and white synthetic flowers and synthetic leaves.

Post-it note with handwritten message in black marker. The message reads: "Love is strongest power exists." A Star of David appears below.

Drawing in crayon on paper featuring a multi-colored home with a floral bouquet in the center, surrounded by lollipops and a wrapped candy. Signed: "lo[ve] Anne" in the upper center.

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

Wooden pedestal painted white with white Star of David and red heart affixed to front. Handwritten in pencil and black marker on the Star of David is the name "Jerry Rabinowitz." (The name is misspelled as "Terry Rabinowitz.) Collaged onto the heart are white pieces of paper and a translation of Psalm 34:18: "The Lord is close to the broken hearted and saves those who are crushed in spirit." Accompanying image shows all 11 Stars of David in the series.

Plastic Ziploc bag with multicolored blue, red, and yellow ribbons tied into a bow on the upper right corner. Staining and dirt due to exposure to the elements at the Wilkins memorial.

Folded card with marker and colored pencil inscriptions. Cover reads: "Do not cry :-) That is sad." Inside reads: "I am very sad about the bad things that happened to you. I hope this never happens again. Luke [last name redacted for privacy]" and features stylized illustration of two stick figures, representing the writer "me" and the recipients "you guys" holding hands.

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.

White sign with "Coexist" written in multiple colors. Many of the letters in "Coexist" have been replaced by interfaith symbols, including the crescent moon, peace symbol, Star of David, yin-yang, and a cross. The hashtag, "Pghstrong" appears in the upper center, followed by a yellow heart. Three additional hearts, outlined in red marker, appear throughout. Blank back.

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.

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.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The front cover reads: "Faith is the friend that comes along when things just seem to go all wrong." The inside reads: "Please accept our sympathy and prayer at this sad time. Love- Scott, Michelle, Sean, and Jill [last name redacted]."

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "In light of recent events, I want to send over my condolences and love. I want you to know that this is not who we Christians are. We are not hate- only love. Your community is always and forever in prayers. [Smiley face]."

White posterboard with handwritten message in colored marker. The poster features a quote from 1 Peter 4:8, reading: "Continue to show deep love for each other." The word "love" is embellished with over a dozen hearts. The word, "Trump" has been crossed out on the upper left corner on the reverse.

White poster board with a painting of a tree. Inscriptions with supportive messages and biblical quotes written on multicolored leaves; Star of David painted on trunk. Metallic leaves glued throughout. Addressed to Tree of Life synagogue from St. Patrick's Church in Oakdale, Pa.

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.