On the night of Monday, December 4, 2017, 22-year-old Richard Harris Jr. was killed by gunfire in the stairwell of an apartment complex on Everton Street in Pittsburgh’s Lincoln-Lemington neighborhood. The shooting occurred around 11:15 p.m. and left two other people — a man and a woman — wounded and taken to a hospital in stable condition.

Also found dead at the scene was 22-year-old Allen Bailey of Wilkinsburg. Police appealed for public help in the days after the attack, but initial reports said no arrests had been made and the shooter or shooters remained at large.

Who in the area that night might have seen anything unusual in or around the Everton Street complex?