He came to the aid of a woman in distress -- and ended up killing the man who was accosting her.
Now Winnipeg police want to speak to a "Good Samaritan" whose well-intended intervention ended up having deadly consequences.
Details emerged Monday of the incident, which occurred the evening of May 18 in the parking lot of the McDonald's on Notre Dame Avenue. It is the 10th homicide of the year in the city.
Police say a man and his girlfriend got involved in a domestic dispute around 5:30 p.m. that was witnessed by several citizens.
"One of the bystanders, concerned about the victim's actions and thus the safety of the female, approached the two in an effort to intervene," police said Monday in a news release. "As a result, the bystander became involved in a physical altercation with the victim. During this altercation, the victim was struck, resulting in his falling to the ground."
The 33-year-old man, identified as Marlon Dean Laronde (who also goes by Hart), was rushed to hospital in critical condition and has now died of his injuries.
Police say the man who threw the punch at Laronde left the scene before officers had arrived. Members of the homicide unit now need to speak with him. They are asking him to come forward, along with anyone else who may have witnessed the incident. Officers can be reached at 204-986-6508.
Police haven't said what charge he may be facing, but manslaughter would be most likely, as it deals with an accidental or unintentional killing. There have been a handful of cases in recent years in which people have died as a result of single punches, and two where the accused killer was acquitted at trial on the legal grounds that they were using self-defence.