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Mackey Gets 22 Years, Nieves 11 in Amityville Double Murder Under Domestic Violence Law

The judge accepted plea deals under New York’s domestic‑violence statute, then sealed the filings that relatives later criticized.

Overview

  • Supreme Court Justice John Collins approved reduced sentences after defense teams invoked the Domestic Violence Survivors Justice Act and ordered the abuse submission sealed, including a forensic psychiatric report.
  • Co-defendant Steven Brown was sentenced to five years for helping dispose of the bodies, while Amanda Wallace had been sentenced earlier for her role in concealing the crime.
  • Jeffrey Mackey admitted stabbing Malcolm Craig Brown and Donna Conneely during the Feb. 27, 2024 attack, and Alexis Nieves pleaded guilty to manslaughter for striking Conneely with a meat tenderizer.
  • Investigators linked the defendants to the killings through the murder weapon, video surveillance and blood evidence, and prosecutors have suggested a dispute tied to robberies and money as a possible motive.
  • Relatives said they were not told in advance about the abuse claims or the plea agreements, expressing anger over the reduced terms after remains were found in Babylon, West Babylon and Bethpage State Park.