India, April 10 -- Authorities in Chicago are continuing to investigate the killing of 25-year-old Alexander "Xander" Kazanowski, as Chicago Police Department search for four individuals believed to have been present around the time of the incident.

Officials have not formally identified them as suspects or disclosed a possible motive.

Police said they are looking to question three men and one woman seen near the scene in the Avondale neighborhood. The men were described as wearing:

The fourth individual is described as an Asian woman wearing a black jacket and white pants.

Authorities have not clarified their involvement but are urging the public to share any information. Here are 5 things we know so far about the victim:

The incide...