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

The father of 19-year-old college student Quintonio LeGrier believes his son may still have been alive had police administered CPR after shooting him.

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.