This is just incredibly sad: the Post reports that Quan Chu, a 78-year-old D.C. resident who was hit by a bicyclist in an alley off the 600 block of Massachusetts Avenue NW on November 26, has died as a result of his injuries. Police are still searching for the person riding the bike, who allegedly pedaled away after knocking down both Chu and an elderly woman who was walking alongside him that morning. The woman, who has not been identified, was also hospitalized after the incident. According to police, the cyclist, who was riding a “BMX-style bicycle” and wearing a grey hooded sweatshirt, left the scene around 10 a.m. and headed south through the alley toward I Street NW — anyone with information about the incident is asked to contact authorities at 202-727-9099 or 1-888-919-2746, or anonymously via 1-866-411-TIPS.