Jacqueline Villasenor, 39, faces one count of involuntary manslaughter, according to officials.
Investigators said she and her husband were arguing at their Far Northwest Side home around 7:15 p.m. Tuesday when they began struggling over a gun.
The weapon fired once, killing Villasenor’s 44-year-old husband. His name has not been released pending an autopsy.
Villasenor was due in bond court Friday.