From Paul Kelley:

“I have been a volunteer at the finish line for over 25 years. This year my daughter Samantha and her friend Rachel came with me. This has been a very difficult week for Sam and Rachel, they have experienced and seen things that no one should have to see. Last night the two of them, along with another friend, made a giant sign on a shower curtain and hung on a fence surrounding the tennis courts and facing (Andover High School.)”

Crosses of Martin Richard, Lu Lingzi, and Krystle Campbell were among many items honoring marathon victims at the makeshift memorial on East Berkeley Street.

A military police officer stands behind a sign that reads 'Boston is a tough and resilient town so are its people', near the Boston Marathon finish line.

A Boston Red Sox cap decorates a makeshift memorial on Boylston Street.

A sports jersey decorates a makeshift memorial on Boylston Street.

A memorial to MIT Patrol Officer Sean A. Collier, in Cambridge.

A Boston Red Sox hat is seen beside flowers placed for the bombing victims, on a corner near the Boston Marathon finish line.

A young girl writes a message on a sign at a memorial to the victims near the scene of the Boston Marathon bombings.

A boy writes a message on a memorial sign board for victims of the Boston Marathon bombings near the scene of the blasts.

A woman writes a message at a memorial for victims in front of a sign thanking the Boston Police Department and other law enforcement.

Items including a pair of running shoes have been placed at a makeshift memorial for victims near the site of the Boston Marathon bombings.

A Boston Marathon volunteer wears a marathon jacket while she visits a makeshift memorial for victims near the site of the Boston Marathon bombings a day after the second suspect was captured.

A sign with the photographs of Sean Collier, bottom left, a Massachusetts Institute of Technology officer killed, and Richard Donohue, a Boston Police officer who was shot and critically wounded, is seen at a makeshift memorial on Boylston Street.

After the second suspect was captured, people came to the barricades at the corner of Boylston Street and Hereford Street near the Marathon Finish line to celebrate and reflect. There were still memorials at the scene.

Flags were hung on overpass on Interstate 93 just before Columbia Road exit.

Students write memories of the slain Boston University student in Chinese and English at the university’s Marsh Chapel.

Students build a Boston Marathon bombing memorial at Boston University.

Note at Boston University: “From Boston and Beijing with love”

Boston University card: “Time moves on but our hearts never forget.”

Memorial at Boston University

A mailbox on Newbury Street

A sign on a Newbury Stret window

Signs line Newbury Street outside of the Hynes MBTA stop. Most of the signs celebrated the first responders.

Signs at the intersection of Boylston Street and Massachusetts Avenue.

The Johnny Kelley statue, located off the marathon route just prior to Heartbreak Kill, is dedicated to the man who ran 61 Boston Marathons, his last at age 84 in 1992. It serves as an inspiration for the race’s most difficult moments.

On Wednesday, there were flowers, a candle, and someone’s marathon medal placed at Kelley’s feet to mark the bombing attack.

“It’s changed our world, right?” said Janet Porcaro, who stopped at the statue as she walked her dog.. “It’s so sad.”

Another woman passed by and gazed up at the statue of Kelley, which depicts him as a young man holding hands in victory with his older version. Referring to this week’s attack, she said “You’re glad he wasn’t there to witness it.”

A message written on a banner seen during a vigil on the Boston Common

Jocelyn and Justine Lescarbeau, both of Boston, sign a banner with well wishes during a vigil and memorial at the Boston Common.

The Rivers School students expressed their gratitude to the first responders.

A National Guard member along St. James Avenue

A youth shakes the hand of a National Guard member alogn St. James Avenue.

Memorials at Arlington and Boylston streets

Taking a picture at Arlington and Boylston streets

A National Guard member walks down Mass Avenue.

Memorials at Arlington and Boylston streets

(Left to right) Suffolk University students Isabelle Atkinson, 21, Chantelle Gilbert , 22, Nick Carton, 22, all of Boston, brought flowers to put at Boylston and Arlington memorial. They were pictured at the Star Market on Huntington Street.

Memorials at Arlington and Boylston streets

(Left to right) Suffolk University students Isabelle Atkinson, 21, Chantelle Gilbert , 22, Nick Carton, 22, all of Boston, brought flowers to put at Boylston and Arlington memorial. They were pictured at the Star Market on Huntington Street.

Memorial at Arlington and Boylston streets

A runner places her medal on makeshift memorial near blast site.

Memorial in Davis Square

On the steps of Firefly shop on Newbury

Tributes pop up in Dorchester.

Flags remain at half-mast in Boston.

Memorial in Hopkinton

Memorial at Emmanuel College

Memorial at Boylston Street

Memorial at Emmanuel College

From Evan Allen: “Someone wrote this in front of home (of victim Martin Richard) with chalk children left out Sunday.”

Memorial at Emmanuel College

Submitted by Aisling Kerr:

“Took this picture when my flight from Washington DC back home to Boston landed at Logan yesterday evening. Martin Richards went to school with my little brother and his older brother Henry was a classmate of my brothers. My family is from Dorchester and our community is in shock at the tragedy that has struck the Richards family.

The sunset at Logan yesterday evening provided some hope that God is with the city of Boston and all those affected by this tragedy, especially the Richards family.“