Wednesday marks the second anniversary of the Boston Marathon bombings.
On April 15, 2013, a pair of bombs went off within 12 seconds of each other at the race’s finish line.
Three people died and more than 200 others were injured.
The city will honor the victims and survivors with a day of service today.
The surviving bomber, Dzhokhar Tsarnaev, was recently found guilty on all 30 counts he faced.
They include using weapons of mass destruction, bombing a place of public use, conspiracy, and aiding and abetting.
Next week, the jury will begin to decide whether Tsarnaev should be put to death or spend the rest of his life in prison.
The judge told the jurors the penalty phase should last about four weeks.