Saturday marks the 10th anniversary of the Boston Marathon bombing that killed three people and injured hundreds more on April 15, 2013. It's one of the more cataclysmic events in the history of the city. On that day, two bombs made from pressure cookers exploded at the Boston Marathon finish line, killing two women and an 8-year-old boy and injuring more than 260. The suspected bomber died in a shootout with police; his brother was tried, convicted and sentenced to death. 📸: Boston Globe via Getty Images