Christopher Johnson, 29, was fatally shot in the basement of a west-side Detroit home on March 8, 2016, after an argument with a family member. Police responding to a report of a person with a weapon found Johnson with a gunshot wound to his chest; medical personnel pronounced him dead at the scene.

Investigators say the fatal shot was fired through a closed door inside the residence. Johnson’s brother was identified as the suspect and was arrested, facing multiple charges including second-degree murder and firearm-related offenses.

Who knew Christopher or was in that neighborhood that night and can help fill gaps about what led to the dispute?