A mass shooter who killed six people at a supermarket where he worked had an energy drink addiction and "nobody really liked him", according to a former colleague.
Walmart manager Andre Bing, 31, fired at fellow staff and shoppers during his bloody rampage last night at the outlet in Chesapeake, Virginia, US, before turning the gun on himself.
Ex-overnight stocker at the store, James Credle, told the Mirror the killer introduced him to the Yellow Edition of Red Bull and they would drink it together on shift.
