Marek Kaczmarczyk, 43, was killed on May 13, 2012, in an apartment in Chicago’s Portage Park neighborhood. The attackers then ransacked the apartment.

The killing was described as part of a wider pattern of violence in the city at that time, highlighting concerns about residents’ safety in their own homes and the challenges faced by law enforcement and communities in reducing violent crime. Authorities were described as continuing efforts to trace the offenders. If anyone had information about the attack or the intruders, please share what is known with investigators.