The latest information is that this was a "domestic situation".
Domestic violence receives far too little attention.  If a person is charged with DV, he/she should be required to surrender all firearms pending trial. If the verdict is not guilty,  everything should be returned.  If the verdict is guilty or if there's a plea bargain,  the defendant should be prohibited from possessing any firearms until successful completion of a strenuous therapy course and a couple of years thereafter to demonstrate longer term success.