Two people who were killed in a domestic-related shooting that left two others critically wounded early Thursday in the South Chicago neighborhood have been identified.

The four people were shot by a known suspect in the 8000 block of South Shore Drive about 12:10 a.m., according to Chicago Police.

The suspect got into argument with one of the victims and it turned physical, police said. He left the home, returned with a gun and shot all four victims.

A 20-year-old woman, Emoni House; and a 16-year-old boy, Elijah House, were pronounced dead at the scene, according to police and the Cook County medical examiner’s office.

Emoni House suffered multiple gunshot wounds, and Elijah House suffered a gunshot wound to the back, according to the medical examiner’s office. Both lived on the block where the shooting happened.

A 42-year-old woman was shot in the chest, and a 30-year-old woman was also shot, police said. They were taken in critical condition to Christ Medical Center in Oak Lawn.

The shooting was domestic-related, police said.

No one was in custody as of Monday morning as Area South detectives investigate.