One Boston Day April 15, 2021 12:17 pm April 15: City Reflects on One Boston Day City officials and residents remember the Boston Marathon bombing on April 15. US & World Videos 1:33 Mass. man mauled by grizzly bear in Wyoming 2:10 Ipswich debates future of historic dam 2:38 Derrick White fans excited for Eastern Conference Finals 2:51 US delegation efforts negotiation with Turks & Caicos officials over ammo law arrests 1:38 Boston officials have plans to prevent summertime crime