Mark Daniel Davis, 48, was ambushed and shot multiple times while walking to a bus stop in Centennial, in the Aurora, Colorado area, during the early morning of January 18, 2019. A call reporting gunshots came in about 5:43 a.m., but deputies initially found nothing; a second call about an hour later led to the discovery of Davis’s body on the ground in front of an apartment building.

A father of six who used a cane because of severe arthritis in his back and neck, Davis was described as a quiet man with no known enemies. His family and investigators say they are puzzled about a motive. The Arapahoe County Sheriff’s Office has investigated the case, but leads reportedly dried up and no suspects have been publicly identified; a reward has been offered for information.

Does anyone have information about Davis’s movements that morning or saw anything near the apartment building around 5:45–6:45 a.m. that could help bring justice for his family?