The violence may have started from an argument between the 19-year-old and the 35-year-old, the latter believed to be linked to the Folk Nations gang, sources said.
Gianna Kistenmacher, 17, been charged with being an accessory before the fact for allegedly bringing the shooter to the crime scene knowing he was both armed and likely to kill her boyfriend.
Asian markets surged Monday, with Japan's Nikkei hitting a new record and Chinese shares at their highest in 10 months. Investors await Jackson Hole symposium from the Fed for rate cues while strong earnings help keep Wall Street propped up.