Marko Davis, a 21-year-old Black man, was found dead inside Detroit’s abandoned Packard Plant on the evening of December 24, 2013. Urban explorers discovered his frozen body at 7:05 p.m. while photographing the sprawling factory ruins.

Police noted visible trauma to Marko’s neck, and Sgt. Michael Woody said that suggested possible strangulation; the death was being investigated as a homicide pending the Wayne County coroner’s determination. This was the second nearby homicide investigation in recent months, following the October discovery of a law school student’s body in a vacant lot close to the plant. As of January 2014, detectives were still investigating Marko’s death and the case remains unsolved.

Did anyone who frequented the Packard Plant or the surrounding area around late 2013 notice anything unusual that night or in the weeks before?