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Sydney Monzon death by force case profile photo

Sydney Monzon

Case from Provincetown, MA dated May 21, 1968

Victim Details

Sydney Monzon

Female

White / Caucasian

Provincetown

MA

1968-05

18

Sydney

Monzon

06/26/2026

Case Description

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In the spring of 1968, 18-year-old Sydney Monzon was last seen alive in Provincetown, Massachusetts, getting into a car with a man named Antone "Tony" Costa. Her disappearance in May of that year initially garnered little media attention, as she was one of several local teenagers who had vanished, and authorities believed she might have left on her own accord. Monzon, who was described as a petite woman, about four feet, eleven inches tall, was living with a local fisherman at the time but was a ...
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Links to Additional Sources (10)

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  • Tony Costa - Wikipedia
  • Episode 77: Tony Costa - True Crime New England
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    Forum Posts (1)

    I recently came across information about the murder of Sydney Lee Monzon, and it’s been weighing h... ...Read More
    03/03/2025
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