Three people were charged Thursday afternoon in the death of pregnant teenager Marlen Ochoa, whose body was discovered in a garbage can and her baby cut out of her womb.
The medical examiner announced Wednesday Ochoa-Uriostegui died of ligature strangulation, and her death is considered a homicide.
The newborn was in grave condition and not expected to survive, and three people were taken into custody, including a woman who pretended the baby was hers, police said.
Chicago Fire Department spokesman Larry Merritt said a 46-year-old woman called 911 reporting that her newborn baby was in distress.
When police arrived to question Figueroa, her daughter said her mother was in hospital with a leg injury, before adding she had just delivered a baby, said Brendan Deenihan, deputy chief of detectives.
Police said Marlen Ochoa-Lopez, 19, was heading to the Figueroa house after the mother posted an offer of free baby clothes on a Facebook chatroom.
Quinet, who co-authored the homicide textbook The Will to Kill: Making Sense of Senseless Murder, said it's as illogical as it is horrific: she's unaware of any case of "murder by C-section", as she describes it, in which the baby wasn't found and the crime wasn't discovered.
Suspicious, detectives subpoenaed hospital records and began to collect DNA samples from the baby, his biological father and Figueroa. Clarisa Figueroa and Desiree Figueroa have been charged with the murder of Marlen Ochoa-Uriostegui and with the aggravated battery of Marlen's baby boy. "We assume they would raise the child as their own".
"Music is my life & writing songs is what I wish!", Ochoa-Lopez wrote on her Facebook page.
Ms Ochoa-Lopez's family had been looking for her since her disappearance, organising search parties, holding news conferences and pushing police for updates on the investigation. She was supposed to pick up her 3-year-old from day care later but never showed up, authorities said.
"She was giving clothes away, supposedly under the pretenses that her daughter had been given clothes, and they had all these extra boy clothes, and that were the false pretenses that I believe led her to that house", Garcia said.
The woman who responded, allegedly Figueroa, offered baby clothes and other unused items, and directed Ochoa-Lopez to private message her.
Her body was found on May 14th in a bin on a property, following interviews and DNA evidence.
"She did nothing to them".
Ochoa-Lopez's mother, Raquel Uriostegui, cried: "I want justice for my daughter, my only daughter".
The pregnant woman, who had been reported missing three weeks ago, has been identified as Marlen Ochoa-Uriostegui.
Police believe that Clarisa Figueroa lured the expectant mother to her home - offering free baby clothes - after meeting the young woman on Facebook. "She was a good person".
"She did nothing to them", said Yovani Lopez, her husband, reported the Chicago Tribune.
The baby, given the name Yadiel Yovany Lopez by the family, is on life support and has no brain function, family members said. Even at that age, Ochoa-Lopez took on a mothering role, asking for help when the family was undergoing a hardship and needed furniture.