It's not clear what led up to the deadly shooting. Investigators say the victim had just returned home from work and that he had left to go on a quick trip to the store.
Authorities say he was on the phone with his wife, telling her he felt like he was being followed.
"While coming home, the wife was able to speak with him on the phone and overhear some type of argument, a gunshot," Jonathan French with HPD Homicide. "The wife comes out here and finds her husband here on the sidewalk."
Good Samaritans who heard the gunshots ran to help the man but it was too late and he died at the scene. The investigation is ongoing.