Kasandra Perkins, the mother of a 3 month old girl, was killed by her "boyfriend," who happened to be a football player. Kasandra Perkins, and her daughter, are victims of domestic violence. In this case, the weapon used wasn't her boyfriend's fists, nor a knife, nor a car, but a gun.
I mention the weapon here only for one reason: it doesn't matter what means her boyfriend used to kill her. Kasandra Perkins is dead and her baby no longer has a living mother. And, as I write this, what is now being reported is the murderer has a history of domestic violence against other women.
The killer's occupation is not an issue. The means the killer used to kill Kasandra Perkins is not an issue. The rate of violence for people who have the killer's occupation is not an issue. Domestic violence is the issue and Kasandra Perkins is dead.
The rest of it is noise. End of story.