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St. Pete Mom Accused of Suffocating Her Son, Stabbing Herself in Arms

Diana Cullom was charged after suffocating her 4-year-old son; police found a knife and note at the home with no prior 911 calls reported, officials said.

  • On January 28, 2026, Diana Elizabeth Cullom, 43, was charged with first-degree murder after her 16-year-old daughter found Finley Joseph Cullom at 1760 Tanglewood Drive NE around 3:30 p.m. Tuesday.
  • Initial reports said the boy had been stabbed, but the medical examiner later determined Finley Joseph Cullom was suffocated, reportedly with a plastic bag, not stabbed.
  • At the scene, investigators found blood throughout the house from Diana Elizabeth Cullom's self-inflicted stab wounds; she was treated and released from Bayfront Hospital before her early Wednesday arrest and booking.
  • Investigators said the probe is active; the St. Petersburg Police Department remains at the house gathering evidence, providing victim services for family and responders, and Cullom is expected in court Thursday.
  • Police noted there were no prior 911 calls at the home, and `She found a note in the house, so we believe that the scene is contained within the home`, Holloway said.
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WTSP broke the news in Washington, United States on Tuesday, January 27, 2026.
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