Michael T DeFilippis, 29, was found dead in his condo near Grand and Harlem in Chicago on December 23, 2009. Authorities described his death as a homicide; reports say he had been stabbed and bludgeoned.

Investigators noted possible links between DeFilippis and a local drug-dealing operation. He was reportedly associated with Joseph Giacchino Jr, and some accounts suggest DeFilippis and another man, Anthony Catalano, may have been involved in a prescription drug distribution ring connected to Giacchino. Those reported connections have been advanced as possible motives, but no arrests were made and police did not confirm direct involvement by Giacchino or others.

Many questions remain about who killed DeFilippis and why. If anyone knew Michael, his associates, or had information about activities around Grand and Harlem in late 2009, please share what is known.