Claimed mother killed Stoni by strangling her with a T-shirt and suffocated her with a plastic bag

for approximately two weeks prior to his death by tying a belt around his neck, throwing hot water on him while in the shower and putting a plastic bag over his head'

A teenager told authorities that her mother killed two siblings and forced her to put one of the bodies in the freezer of their Detroit home where both were found by an eviction crew.

Details of death and extreme abuse emerged Thursday as Mitchelle Blair appeared in court, two days after the bodies of a 9-year-old son, Stephen Berry, and 13-year-old daughter, Stoni Blair, were discovered.

Blair, 35, is charged with child abuse, but she could face murder charges when the bodies thaw and autopsies are performed, prosecutors said. Bond was set at $1 million.

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Mitchelle Blair stands during her video arraignment on Thursday. Her daughter told authorities that her mother killed two siblings and forced her to put one of the bodies in the freezer of their Detroit home where both were found by an eviction crew

Details of death and extreme abuse emerged Thursday as Mitchelle Blair appeared in court, two days after the bodies of a 9-year-old son, Stephen Berry, and 13-year-old daughter, Stoni Blair, were discovered

Daughter: Blair's daughter, Stoni Ann Blair, is seen with her father Alexander Dorsey. Stoni would have been 15 now, if alive. Her sister claimed Blair killed Stoni by strangling her with a T-shirt and suffocated her with a plastic bag

Court officers serving an eviction notice at Blair's home opened the freezer and found the bodies of her daughter Stoni Ann Blair and her son Stephen Gage Berry

An attorney hasn't been assigned.

The Michigan Department of Human Services is taking steps to end Blair's rights to two other children, a 17-year-old daughter and an 8-year-old son.

In a court filing, the state said the teen described a house of horror, where she and her surviving brother were beaten with an extension cord and piece of wood, hit with a hot curling iron and burned with a clothing iron.

'Blair tortured Stephen for approximately two weeks prior to his death by tying a belt around his neck, throwing hot water on him while in the shower and putting a plastic bag over his head,' the state said, quoting the 17-year-old.

In a court filing, the state said the teen described a house of horror, where she and her surviving brother were beaten with an extension cord and piece of wood, hit with a hot curling iron and burned with a clothing iron

A woman walks past notes left on the door at at the family's home on Wednesday

Stephen was 'unresponsive' on Aug. 30, 2012, and Blair wrapped his body in bed linen and put him in the freezer, the state said.

Nine months later, Blair became 'enraged' when Stoni said she didn't like her surviving siblings and strangled the girl with a T-shirt and suffocated her with a plastic bag, the department said.

Blair then made the teen 'put Stoni in the deep freezer following her death,' the agency said.

The 8-year-old boy also was aware that his sister and brother were killed and subsequently placed in the freezer, the department said.

Medical exams revealed evidence of abuse, including numerous scars, on the children.

Toni Williams, 28, left, and Natasha Bell, 30, leave balloons at the house on Wednesday

The teenager said neither she nor her siblings have attended school for two years.

Earlier Thursday, Blair appeared in court on child abuse charges via a video feed from a police lockup.

Magistrate Renee McDuffee entered a not-guilty plea on her behalf.

'The charges in this matter are so heinous,' McDuffee said in explaining the $1 million bond.

The state said it investigated allegations of abuse in 2002 and 2005. Blair was referred to counseling.

The state said the two fathers of Blair's surviving children are unfit to care for them.

Together they owe $50,000 in child support and haven't seen the kids in two to three years.

Neighbors say Blair has lived in the complex at least 10 years.

She was unemployed and having money troubles, and she had gotten behind on her rent.

Neighbors said they knew about the impending eviction. Court records show a judgment filed last month against her for $2,206 owed to the complex.

'While we all understand the desire to know what happened in that home is strong, I will ask you to be mindful of the two children who were also in that home and are still living,' Detroit Police Chief James Craig told reporters Wednesday.