A young Chicago mother accused of throwing her baby son to his death from an 11th-story window, killing his older brother in a bathtub and stabbing her grandfather, had reportedly tried to surrender her children to a shelter just days earlier but was turned away.

Police said early Thursday morning, 20-year-old Aleah Newell tossed her youngest son, seven-month-old Amir Newell, from her family's apartment in the 7200-block of South Shore Drive and then jumped after him, but survived the fall.

When police entered Newell's apartment on the 11th floor after being directed there by building security, they discovered her 70-year-old grandfather, Cardell Walker, with blood gushing from cuts to his face and body.

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Seven-month-old Amir Newell (left) and his two-year-old brother, Jontavious Newell (right) have been identified as the two boys who were allegedly killed by their mother in Chicago

Aleah Newell, 20, is accused of killing her older son in the bathtub, hurling her baby out of an 11th-floor window, and then jumping after him in a failed suicide attempt

A screen is seen broken in an 11th-floor unit in Chicago where police say Newell stabbed her grandfather before throwing her baby son out the window

Walker told officers his granddaughter had attacked him before attempting to take her life.

Police then entered the bathroom and found Newell's two-year-old son, Jontavious 'John John' Newell, dead in the bathtub with severe lacerations to his head and body, and blisters from being scalded by hot water.

Newell's grandfather, 70-year-old Cardell Walker, was found suffering from stab wounds to his face and body

Both children were pronounced dead at Comer Children's Hospital, becoming Chicago's first two homicide victims of 2020.

The grandfather and granddaughter were transported to University of Chicago Medical Center in critical condition.

Family members told CBS Chicago Walker is expected to recover from his stab wounds.

If Aleah Newell survives her injuries, she could face criminal charges.

Meanwhile, the station WGN interviewed women staying at Salvation Army's Shield of Hope shelter, who claimed that a desperate Newell came to the facility on December 30 with her two sons begging for help.

Jontavious Newell was found dead in the bathtub inside the unit in the 7200 block of South Shore Drive early Thursday

A neighbor takes pictures with his cell phone as Chicago Police investigate the murder-attempted suicide on Thursday

The 20-year-old mom-of-two reportedly wanted someone to take her children because she said she could not care for them by herself.

Shelter resident Adiranne Thomas told WGN Newell seemed 'fed up' and did not know what to do.

Thomas quoted the mother as telling some of the other women at the shelter, 'I can't do it, I can't take care of them.'

According to Thomas, when Newell asked shelter officials during the intake process if they could help her with her boys, she was told that they could not assist her and that she had to do it on her own.

A spokesperson for Salvation Army could neither confirm nor deny that Newell had sought help at the shelter, citing client confidentiality.

DailyMail.com on Friday reached out to the charity seeking comment.

Police rushed inside the 11th-floor unit inside this 22-story building and found a 70-year-old man bleeding from cuts to his face and body

The grandfather and granddaughter were rushed to a hospital in critical condition

Police suspect that something broke the mother's fall when she leaped out the window

Family members told WGN that three days later, Newell took some pills before killing her children and leaping out of the window.

In May 2017, Newell lost her older brother to suicide.

Last summer, her other brother posted a chilling Facebook message saying his sister was in the hospital and asking for prayers: 'may god show her the right path and let her not go down the same path as our brother.'