Richard Alfredo Kier Sr., 73, was shot and killed in the yard of his northeast Madison County home in Huntsville, Alabama, on Friday, March 21, 2014. The killing was sudden and violent, and it left his family and community grieving.

An investigation was opened after the shooting, but no suspects or persons of interest have been publicly identified and no arrests have been announced. The motive for the fatal shooting remains unknown and the case is unresolved.

If anyone has information about Richard Kier Sr.’s death or was in the area that day, please share what you know with the authorities.