She's has long voiced her concerns over her children's alleged abuse and is mourning the lose of her son from a preventable.
Zubko-Valva, a corrections officer on Rikers Island, said her sons suffered abuse at the hands of Valva and that the older man had anger issues.
She claims that Valva tortured their children by starving, beating and locking them inside the garage for periods of time.
She says the children would go to school with soiled clothing and wear diapers, despite all of them being potty trained by age two.
?No one did anything,? said Zubko-Valva, adding that the children allegedly scoured for food in the school garbage on the floor.
She said she fought for justice for her children for five years, but was unable to gain custody before tragedy struck.
Zubko-Valva previously lost custody of her children and had not seen them in two years. It's unclear why she did not have custody of the children.
A 2018 East Moriches School District report Zubko-Valva shared on Twitter showcases the depths of abuse Thomas and his siblings suffered.
'Biggest concern is that Mr. Valva and his fiance Angela do not understand the depth of Anthony and Thomas's disabilities,' the report read, regarding Thomas' brother.
'Both Anthony and Thomas come into school hungry and frequently say they did not eat breakfast because they did not ask for breakfast or got in trouble.'
Despite concerns from East Moriches School District and Zubko-Valva, Child Protective Services ignored complaints that Valva made his oldest son sleep in the garage.
New York state's Office of Children and Family Services (OCFS) received a complaint in February that the now 10-year-old son of suspected murderer Michael Valva, 40, was coming to school in soiled clothes after being forced to sleep in the garage.
The allegations were dismissed as 'unfounded' by child welfare and the case closed the following day.
Records have now emerged showing that authorities were aware of long-running child abuse in the home.
They show that a phone call was made to child services, by an unnamed caller, on February 27 stating that Valva's son Anthony was forced to sleep in the garage because he was wetting the bed.
'For the past week, Anthony (9) has been coming to school with his clothes and backpack soaked in urine,' states the OCFS record, seen by The Post.
Anthony has been staying in the garage and is not allowed in his room due to him urinating in his bed ? Step mother (Angela) and Father (Michael) are aware that the child is arriving at school soiled and fail to adequately address the concern.'
It adds: 'The child's feet and hands are bright red, but it unknown if this is as a result of the child being soaked in urine.'
Despite the severity of the allegations, the record shows the agency closed the investigation just one day later, citing it a 'duplicate'.
The record was sent to Anthony and Zubko-Valva, in May 2019 along with a letter which dismissed the allegations as 'unfounded'.
'The investigating district/agency has determined the report to be unfounded and the subject (perpetrator) and other persons named in the report(s) have been notified,' wrote Kristin Gleeson, the director of the state central register division of child welfare and community services, in the letter.
Every time, I kept telling the judge ? 'If you're not going to remove the children, they are going to die under his care and custody,' she told News 12 Long Island.
'There was evidence, hard evidence. Reports filed. Children were telling me, too, about the abuse.'
She said this whole time Child Protective Services did nothing to protect her kids
No one did anything,' said Zubko-Valva, adding that the children allegedly scoured for food in the school garbage on the floor.
'I just really want justice for my son. He deserves it. This should never have happened,' she said.
'I just keep praying for this case to be fully resolved and my little angel Thomas to rest peacefully in heaven?I just wished somebody helped him'
In a Facebook post, Zubko-Valva shared a photo of the last time she saw her sons.
'The last kiss from my youngest son before he was taken away from me ... He always showed me so much love,' she wrote.
'My three loving children, whom two of them have special needs were taken away from me and deprived from any form of communication and contact with me. I was punished by the judge for loving my children unconditionally.'
The couple says they are innocent of any wrong doing.
'Both of them maintain their innocence 100 per cent. We'll see how the facts bear out,' Matthew Tuohy, their lawyer, said.
Valva released a statement regarding his son's death through his attorney.
'As with any tragedy, our office and Mr. Valva are shocked and saddened to learn of the horrible accident that took the life of young Thomas,' it read.