Peter Liang, the rookie NYPD officer who fatally shot an unarmed man in the stairwell of a Brooklyn housing project last year, has been indicted for the killing, according to sources who spoke with the New York Daily News and Pix11.

On the night of November 20, Liang killed Akai Gurley, 28, at the the Pink Houses, a housing project in East New York. Gurley and his girlfriend were walking in one of the building's stairwells when they encountered Liang and his partner. Liang, who reportedly drew his gun immediately after entering the darkened stairwell, fired one shot, striking Gurley. The 28-year-old, later described by police commissioner Bill Bratton as a "total innocent," made it down two flights of stairs before losing consciousness; he was pronounced dead at a nearby hospital early the next morning.

Liang is expected to turn himself in sometime on Wednesday, according to the Daily News. The exact charges have not been released yet.

[Image via AP]