A 15-year-old boy was shot and killed at a NYCHA building in Brooklyn Sunday evening, according to the NYPD. The shooting happened around 7:10pm at the NYCHA Albany buildings at 1008 St. Marks Ave., police say. The teen was found unresponsive and unconscious with gunshot wounds to the chest, police say. He was taken to the hospital in critical condition and pronounced dead. The victim was identified as Tristan Sanders. Click here to read more on pix11.com.