‘I Caused A Big Mistake’: Chicago Man Admitted He Murdered His 9-Months Pregnant Girlfriend, Officials Say

An Illinois man allegedly strangled to death an employee he was dating who was 37-weeks pregnant with his child, authorities said.

Yaer Shen, 46, was arrested at his home in Chicago on Nov. 1 in connection with the murder of his girlfriend, Bilian Fang, 40, WGN-TV reported.

According to court documents, the Cook County State’s Attorney’s office alleged that on Oct. 9, Shen and Fang got into a verbal dispute about money after she showed up at the home he shared with his ex-wife, who did not know Shen had fathered a child with Fang.

The dispute turned physical in Shen's vehicle, and he allegedly killed Fang. An autopsy later determined she died from asphyxiation and blunt force trauma injuries.

After Fang’s death, Shen allegedly dumped her body at the Stickney Water Reclamation Plant.

An autopsy on the remains of the expectant mother and her unborn baby determined the baby could have survived after the mother died if medics had been alerted in time, officials said.

According to police, detectives found a note in Fang’s jacket that was written in Cantonese and allegedly signed by the suspect that read, in summary: “I am sorry. I am not a good person. I made you suffer. I got scammed. I know it is irresponsible for me to leave you. I hope we don’t meet in another life.”

Court documents obtained by WBBM-TV show police also found another note in the suspect’s wallet, which, prosecutors summarized, allegedly stated Shen “had done very bad things, he wanted to kill himself, but couldn't do it, and that he was going to turn himself in, but was afraid to go to prison.”

At Shen’s residence, investigators located a third note he allegedly wrote to his ex-wife that prosecutors said read, in summary: “In the heat of the moment, I did something wrong. I am regretful that in the heat of the moment, I caused a big mistake.”

Shen allegedly admitted to police he killed Fang, prosecutors said.

He was being held without bond.