MILWAUKEE (AP) — Two Wisconsin lawmakers are pushing legislation to tighten the enforcement of gun rules in domestic violence cases, prompted by a fatal shooting rampage at a suburban Milwaukee spa.

Radcliffe Haughton, 45, bought a handgun just two days after his beleaguered wife obtained a restraining order against him. He used that weapon to kill her and two other women Sunday at the spa where she worked, before fatally shooting himself.

Sen. Lena Taylor said the shooting highlights the need for better enforcement of laws that require restraining order recipients to surrender their weapons.