Tyrell Jones, 27, was shot and killed in the early hours of January 5, 2014. Police found him at about 3:17 a.m. on the 5800 block of North Marshall Street in Olney, Philadelphia, lying on the sidewalk with a single, fatal gunshot wound to the chest. Paramedics pronounced him dead at the scene. He lived on the 5800 block of North Franklin Street, nearby.

The Philadelphia Police Department opened a homicide investigation, but the case has gone cold. No suspects have been publicly identified and no arrests have been announced. A reward has been offered for information leading to an arrest and conviction, and authorities have asked anyone with tips to come forward. The motive for the shooting remains unknown.

If readers knew Tyrell, saw activity in that part of Olney on January 5, 2014, or have any information related to this killing, please share what you know with investigators.