Boston marks 4th anniversary of deadly marathon bombing

BOSTON — Bostonians marked the fourth anniversary of the deadly Boston Marathon attacks on Saturday with quiet remembrances for the victims.

Bill Richard placed a large wreath on the Boylston Street sidewalk where his 8-year-old son, Martin, died. The boy was one of the three spectators killed when two bombs planted near the finish line exploded on April 15, 2013, spraying shrapnel into the crowds. More than 260 others were wounded.

Richard stood Saturday with his wife, Denise, their daughter, Jane, and oldest son, Henry, in silence as bagpipers performed "Amazing Grace." The Boston Globe ( ) reports he briefly hugged a family member of Lu Lingzi, a Boston University graduate student from China who was killed in the second blast.

The family of 29-year-old Krystle Campbell placed a second wreath about 200 yards away where the Medford native was killed in the first blast.

Democratic Boston Mayor Marty Walsh and Republican Massachusetts Gov. Charlie Baker took part in the wreath-laying ceremonies for what is now called "One Boston Day."

Sean Collier, a Massachusetts Institute of Technology police officer, also was killed later while struggling with the bombers as they tried to steal his gun.

Bomber Tamerlan Tsarnaev was killed in an ensuing standoff with police. His younger brother, Dzhokhar Tsarnaev, was convicted on federal charges and sentenced to death.

The attacks have inspired several movies, including the Mark Wahlberg film "Patriots Day."

On the eve of the anniversary, volunteers planted thousands of daffodils along the marathon course in solidarity.