Leaders from three West Side gang factions allegedly met last week to discuss plans to shoot members of the Chicago Police Department in response to the fatal police shooting of Paul O’Neal. The meeting took place Thursday between higher-ups from the Vice Lords, Black Disciples and Four Corner Hustlers, according to an alert issued to department members the day after the meeting. The Four Corner Hustlers “provided guns” and have “a sniper in place” though authorities do not know where, according to the alert. The Four Corner Hustlers also are supplying the other two gangs with automatic weapons, which all...