I think it depends on the jurisdiction, in your first example, Gary Nawrocki pleaded guilty to third-degree murder. In the second I couldn’t find a record of conviction, and in the third Zarins plead guilty to homicide by negligent handling of dangerous weapon/explosive and maintain drug trafficking place.
Generally you need intent for it to be murder, but some jurisdictions have degrees of murder with less stringent legal requirements, It comes down to whether it would be considered acting with an extreme, reckless disregard for human life.
I think it depends on the jurisdiction, in your first example, Gary Nawrocki pleaded guilty to third-degree murder. In the second I couldn’t find a record of conviction, and in the third Zarins plead guilty to homicide by negligent handling of dangerous weapon/explosive and maintain drug trafficking place.
Generally you need intent for it to be murder, but some jurisdictions have degrees of murder with less stringent legal requirements, It comes down to whether it would be considered acting with an extreme, reckless disregard for human life.