This story has been updated at 8:51 PM
WILLOWBROOK (CNS) - A 29-year-old man was arrested today on suspicion of murder and assault with a deadly weapon in connection with the shooting death of his girlfriend and the critical wounding of their 8-year-old daughter in the unincorporated Willowbrook area north of Compton.
The shooting occurred a little after 1:40 a.m. in the 12400 block of South Grandee Avenue, where deputies dispatched to the location reported that the woman, shot at least once in the upper torso, was pronounced dead at the scene, said Deputy Charles Moore of the Los Angeles County Sheriff's Department Information Bureau.
Juan Rodriguez allegedly produced a gun during an argument between the two and fired several rounds at the woman, striking her in the upper torso, police said.
Their 8-year-old daughter was accidentally struck by gunfire and remains in critical condition.
Deputies dispatched to the scene located two of the woman's children, a 1-year-old boy and a 3-year-old girl, who were unharmed, Moore said. Shortly after that, deputies also reported that Rodriguez had rushed the 8-year-old girl to a hospital, where she was listed in critical condition, Moore said.
The couple had been in a dating relationship for approximately nine years, Moore said.
Sheriff's homicide detectives asked anyone with information regarding the shooting to call them at (323) 890-5500.