Many are outraged that an officer under investigation for fatal shootings was returned to street duty. Officials claim it was a mistake.

Two workers at Chicago's 911 center have been suspended without pay after failing to send police to assist Quintonio LeGrier, who called 911 three times for help on Dec. 26 from his father’s West Side apartment, reports the Washington Post.

Arguing that Quintonio LeGrier, 19, was unarmed when Chicago police shot and killed him over the weekend, his father on Monday filed a wrongful-death lawsuit against the city, reports DNAinfo Chicago.