Crime NYPD Cop's Dog Slept in Heated Room While Son, 8, Froze to Death in Garage: Housekeeper Former NYPD officer Michael Valva is accused of murdering his 8-year-old son, who had autism By Chris Harris Chris Harris Twitter Chris Harris has been a senior true crime reporter for PEOPLE since late 2015. An award-winning journalist who has worked for Rolling Stone and MTV News, Chris enjoys prog rock, cycling, Marvel movies, IPAs, and roller coasters. People Editorial Guidelines Published on May 19, 2021 10:46 AM Share Tweet Pin Email Thomas Valva. In the hours before his death from hypothermia, 8-year-old Thomas Valva was allegedly forced to sleep in sub-freezing temperatures in the garage of his father's Long Island, N.Y., home — all while the family's dog, Bella, slept in a heated room nearby, a former housekeeper testified this week. During a pre-trial hearing for former New York City police officer Michael Valva on Monday, prosecution witness Tyrene Rodriguez recalled hearing the young boy take his last breaths on the morning of Jan. 17, 2020. "He made noises as the air was expelling from his body," Rodriguez said in court, according to PIX 11, Newsday, and the New York Post. Valva and his fiancée, Angela Pollina, both face second-degree murder charges for their alleged roles in the death of the boy, who had been diagnosed with autism. Both have entered not guilty pleas. Newsday reports that Valva wiped away tears as Rodriguez recounted his efforts to revive a naked Thomas in the home's basement. He was doing chest compressions on the child, who she said was "very cold" and appeared blue in color. 'Why Can't Thomas Walk?' Inside Alleged Abuse, Death of Thomas Valva, 8, and Charges Against Cop Dad "He was very blue ... his lips were blue," Rodriguez said. She also said that the family's dog, Bella, always slept in the mud room, where she kept her cleaning supplies. The room, she said in court, is heated. According to prosecutors, Thomas was made to sleep in the freezing garage after soiling his pajamas. Valva called 911 that morning to report his son had fallen while waiting for his school bus outside their home, saying he was unconscious. The boy was taken to the hospital, but was pronounced dead upon arrival. The cause of his death was ruled a homicide with hypothermia a major contributing factor. Thomas' body temperature was only 76 degrees when he arrived at the hospital. NYPD Officer, Fiancée Allegedly Murdered Son With Autism by Leaving Him Overnight in Frigid Garage Rodriguez testified Monday that paramedics arrived at the home and tried to save the boy. "They pulled out those paddles and then they realized there was nothing happening," she said, recalling that they then "put a silver blanket on him" and took him away in an ambulance. She testified that Michael Valva changed his clothes before boarding the ambulance for the ride with Thomas. Valva's defense attorney has challenged whether detectives had permission to search the home. Prosecutors said at the arraignment for the couple that during their investigation, authorities discovered home security cameras used by Valva and Pollina to monitor their children. One camera found in the garage was labeled "kids room." Thomas Valva's Mom Says She Was 'Begging' for Help to Save Boy, 8, from Cop Dad's Abuse Two nights before Thomas's death, that camera recorded him and his older brother, Anthony, who was 10 at the time, shivering as they slept on the floor of the freezing garage, prosecutors said. On the day of his death, Thomas was allegedly falling over and "face-planting" on the garage's concrete floor. In an audio recording from that morning, his brother can be heard asking, "Why can't Thomas walk?" Want to keep up with the latest crime coverage? Sign up for PEOPLE's free True Crime newsletter for breaking crime news, ongoing trial coverage and details of intriguing unsolved cases. "When you're washed with cold water and it's freezing, you get hypothermia," Pollina responds, prosecutors said, citing the recording. Thomas' mother, Justyna Zubko-Valva, has alleged that her son was the victim of years of physical and psychological abuse. She says that for years, she unsuccessfully sought help from state authorities, hoping they would intervene. Additional testimony is expected to resume on Wednesday, with Pollina set to take the stand. If you suspect child abuse, call the Childhelp National Child Abuse Hotline at 1-800-4-A-Child or 1-800-422-4453, or go to www.childhelp.org. All calls are toll-free and confidential. The hotline is available 24/7 in more than 170 languages.