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Baiyin serial murders

A homicide case documented in Gansu and Inner Mongolia, China, during 1988–2002.

Place
Gansu and Inner Mongolia, China
Date
1988–2002
Status
SolvedAuthorities consider the case resolved, usually after identifying or convicting the responsible person.
Sources
2 cited sources

Updated 23 Aug 2026

Overview

Case overview

He is thought to have killed eleven women between 1988 and 2002. Police linked the eleven murders for the first time in 2004 and offered a reward of 200,000 yuan. [1]

Sentenced to death and stripped of all his assets, he was executed in January 2019. Gao was sentenced to death and stripped of all his assets on 30 March 2018, and was executed on 3 January 2019; the method of execution used was not disclosed. Gao's wife stated that she noticed that her husband would disappear from the house for days at a time; however she never suspected him to be a serial killer. [2]

The western urban district of Baiyin in Gansu, China
The western urban district of Baiyin in Gansu, Chinawatarukawa · CC BY-SA 4.0 · View original ↗
Detailed chronology

Key events

5 sourced milestones

Major events in the case, shown in chronological order.

  1. Eleven women are killed

    Eleven women were killed in Baiyin and Baotou over a fourteen-year period before the series was linked to one offender.

    Source: Wikipedia ↗
  2. Police formally link the cases

    Investigators connected the eleven murders and offered a public reward for information leading to an arrest.

    Source: Wikipedia ↗
  3. Police arrest Gao Chengyong

    Police arrested Gao at the grocery store where he worked after DNA evidence connected his family to the investigation.

    Source: Wikipedia ↗
  4. The court imposes a death sentence

    A Chinese court convicted Gao of eleven murders and related offences and sentenced him to death.

    Source: Wikipedia ↗
  5. The sentence is carried out

    Gao was executed after the required judicial review of his convictions and sentence concluded.

    Source: Wikipedia ↗
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Baiyin serial murders: timeline and sources — Global Case Archive