Was Alex Mengel a serial killer?

On July 16, 1984, 12-year-old Antonella Mattina disappeared from Flushing, Queens after running an errand to deposit funds at a Citibank branch. Three years later, on Thanksgiving Day 1987, her remains were discovered in a shallow grave near Yorktown, New York, by the Taconic State Parkway. The medical examiner determined she had suffered multiple stab wounds, and her death was officially ruled a homicide. Over time, suspicion has fallen on Alex J. Mengel, a convicted murderer and suspected serial killer, in part because an eyewitness claim linked him to Mattina’s disappearance and because his brother Gustav lived nearby. However, no definitive evidence has ever tied Mengel—or anyone else—to her murder, and the case remains officially unsolved. The Mattina family and advocates continue to press for renewed investigation and closure in this cold case.

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