Last night, the Los Angeles County Sheriff's Department released photos, surveillance video, and 911 calls related to the fatal police shooting of 28-year-old Nicholas Robertson.

Officials said that sheriff's deputies were responding to calls of a man with a gun, shooting into the air, and entering at least one business around 11am on Saturday.

A 30 second cell phone video that went viral after the shooting appeared to show that Robertson was walking away from deputies when they opened fire. 

The longer surveillance video released by the Sheriff's Department yesterday seemed to show Robertson turning toward the officers with a gun, as he walked toward a gas station. 

David A. Klinger, a professor of Criminology and Criminal Justice at the University of Missouri-St. Louis, joined Take Two to talk about this latest case to spark debate about police use of force.

To hear the full interview, click the link above.