Samuel Keen, 27, died March 17, 2014, in Porter, Texas, after being shot at the front door of a home he mistakenly tried to enter. Keen, a Houston Fire Department firefighter and Marine veteran, had taken a cab home after celebrating St. Patrick’s Day and went to the wrong house. The 64-year-old homeowner, believing someone was attempting to break in, shot him through the door. Keen was taken to a hospital and later died of his injuries; the homeowner was not physically harmed.

The shooting was treated as a tragic mistake and the case was referred to a grand jury to decide whether charges would be filed. Houston Fire Department colleagues and the community mourned Keen’s death, and flags at fire stations were lowered to half-staff.

If anyone knew Samuel, his movements that night, or has information about the incident, please share what you can.