F9
Source-basedStable
Feb 9 Killer
Unidentified serial killer
- Fame42.3
- Momentum0.0
- Wikipedia510
Born 1980 · age 46United States
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Summary
Updated 2026-06-25
Juan Antonio Arreola-Murillo, also known as the February 9 Killer, is a murderer responsible for the killing of two Salt Lake County, Utah women across the span of two years. In 2006, Arreola-Murillo murdered Sonia Mejia and her unborn baby. Two years later, he murdered Damiana Castillo. Both murders were committed on the same day, February 9, hence the nickname.
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Score breakdown
The six component signals behind the Fame score, and their ranks across the leaderboards.
Fame
Stable42.3
Composite of search demand, mentions, audience & graph footprint.
Score components
Historical7.0
Source confidence45.0
Completeness35.0
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Receipts
Sources
- 二月九日杀手Low confidencewikipedia · zh.wikipedia.org
- قاتل 9 شباط / فبرايرLow confidencewikipedia · ar.wikipedia.org
- February 9 KillerLow confidencewikipedia · en.wikipedia.org