Mayor Eric Adams on Friday urged social media firms to ban “drill” rap videos that glorify and promote violence. The mayor’s plea came a day after he gave an emotional speech about the life and death of 18-year-old drill rapper Jayquan McKenley, aka Chii Wvttz, who was gunned down in Bedford-Stuyvesant last Sunday. Adams said he was not familiar with drill rapping — which tends to have dark, violent themes, often including killing with semiautomatic weapons — until he spoke to his son, Jordan Coleman, who works at Jay-Z’s Roc-Nation. “I had no idea what drill rapping was. My son...