For two decades, the Uptown gang has been traced to crimes ranging from drug trafficking to homicides. Uptown is one of 15 known gangs in Syracuse. And a trial this month gave a rare glance into the world of street gangs — diving into social media, where members use emojis to signify membership, to rap videos on YouTube that police say can offer insight into crimes committed by gangs. Reporter Anne Hayes detailed what was revealed about Uptown during the aggravated enterprise corruption trial, i