Quadruple homicide in Mexico linked to Bitcoin theft
Two suspects arrested following a quadruple homicide in Mexico, allegedly connected to a Bitcoin robbery attempt involving a cold wallet.
Bradley Hughes 2 min read
Details of the alleged crime
A quadruple homicide in Atizapán de Zaragoza, Mexico, is raising alarm due to its connection with a Bitcoin robbery. Two suspects, Diego Sebastián and Gerardo (with surnames withheld), are in custody, accused of murder in an investigation indicating they sought a cold wallet thought to contain a substantial amount of Bitcoin.
According to the Attorney General’s Office of the State of Mexico (FGJEM), the killings involved Jonathan Meléndez, a keyboardist for the rock band Camilo Séptimo, his pregnant wife, their daughter, and an employee at their home. Disturbingly, even the family’s pet was killed.
Arrests and legal proceedings
The FGJEM announced the arrests of the two suspects on September 2. They are set to face a hearing, where a judge will examine the evidence to determine if criminal proceedings should continue. If convicted, the suspects could face 25 to 70 years in prison for each homicide.
One of the suspects had a prior business relationship with Meléndez, which authorities suggest could have facilitated entry into the home. Mexico’s security secretary, Omar García Harfuch, detailed these connections in a recent public statement.
Rising pattern of wrench attacks
The incident highlights a growing trend in violent attacks linked to cryptocurrency theft known as wrench attacks. These incidents often involve assailants using threats or violence to compel victims to surrender access to their cryptocurrency wallets.
According to blockchain security firm CertiK, there were 20 publicly reported wrench attacks targeting crypto owners in the first half of 2026, a significant increase from just one incident during the same timeframe in 2025. Overall, 52 wrench attacks were documented globally in the first half of 2026, marking a 33.3% increase from 39 incidents a year earlier.
Increased risks for crypto owners
Notably, these criminal activities resulted in over $30 million in stolen cryptocurrency during the first half of 2026 alone, according to analytics firm Chainalysis. This alarming rise in attacks is indicative of the broader security risks facing cryptocurrency holders.
The term ‘cold wallet’ refers to a type of cryptocurrency wallet that is not connected to the internet, thereby offering a higher level of security against online theft. Such wallets are often used to store significant amounts of cryptocurrency.
Context of global violent crime in crypto
The increase in wrench attacks over the past few years has caught the attention of law enforcement agencies worldwide. In 2025, there was a 75% increase in these events, with confirmed cases rising to 72 globally.
Countries like France have been particularly affected, with 19 confirmed attacks in 2025 alone, accounting for a significant portion of all global incidents. The growing prevalence of violent crime linked to cryptocurrency is reshaping how both investors and regulators approach crypto safety.
This incident in Mexico is not an isolated case; it represents a troubling trend at the intersection of digital currency and criminal activity, underscoring the importance of stringent security measures for crypto holders.