Mumbai police investigate serial killings of homeless men.

Enduring “Stoneman” mystery: 13 skulls crushed in the dead of night Source: India News #1 Mumbai and Kolkata, two of India’s most populous metropolises, have been haunted for more than a decade by an unrelenting series of brutal murders. The victims, mostly homeless pavement dwellers, were discovered with their skulls crushed to fragments, a gruesome signature that gave the killings a chilling moniker: the “Stoneman.” Despite intensive investigations and a flurry of media speculation, authorities have yet to identify a suspect, leaving the case a perplexing puzzle for law‑enforcement agencies and a source of dread for the city’s marginalized communities. The first incident that sparked the “Stoneman” legend occurred in March 2009 on a narrow lane in South Mumbai..

A young man, 22, was found in a shallow grave with his skull shattered into dozens of pieces. The police quickly ruled it a homicide, but the method of killing—an unknown person smashing a skull with a stone—remained unexplained. Witnesses reported a solitary figure roaming the area in the early hours, a shadowy presence that would become a central image in subsequent investigations..

In the weeks that followed, a second body emerged, this time in a Kolkata slum on the outskirts of the city. The victim’s skull, too, had been pulverised, and forensic evidence indicated the use of a large, blunt stone. Though the killings occurred in distinct cities, investigators noted striking similarities: the time of the murders (between 1 am and 3 am), the use of a stone as a weapon, and the targeting of the most vulnerable—those living on the streets..

The police quickly coined the “Stoneman” nickname, hoping to galvanise public awareness and aid in apprehending the killer. Since the first two cases, there have been 11 further incidents that match the established pattern. In 2010, a 19‑year‑old in Mumbai’s Bandra‑Kurla complex was found with his skull fractured into a dozen shards..

A year later, a 28‑year‑old from North Kolkata’s Kankurgachi area suffered the same fate. The frequency of these murders, coupled with their brutal execution, has heightened public fear, particularly among the already vulnerable street‑dwelling populations who now avoid certain alleys after dark. Law‑enforcement agencies have approached the investigation through multiple angles..

Forensic teams have employed advanced imaging technology to analyse the skull fragments, hoping to identify the stone used or any unique wear patterns. In 2013, a forensic anthropologist reported that the fractures were consistent with a single, heavy stone struck with force, suggesting the killer had a level of physical strength and a specific method of attack. Yet, despite these findings, a suspect has not emerged..

The lack of a concrete suspect has led to a number of theories, ranging from a lone psychopath to a serial killer operating across state lines. In 2014, a forensic psychologist published a paper proposing that the “Stoneman” may be a copy‑cat, an individual imitating a previous serial killer’s signature to obfuscate evidence. Other analysts have suggested that the killer may be part of a larger network targeting marginalized communities for personal gain, perhaps as a misguided attempt to “cleanse” the streets..

The police’s investigation has also been complicated by limited resources and the transient nature of the victims. Homeless individuals often lack formal identification, making it difficult to trace family contacts or potential witnesses. Moreover, the killings occur in the dark, in cramped alleyways where few bystanders are likely to observe or remember the perpetrator’s face..

In 2017, the Mumbai Police launched a dedicated task force, “Operation Stone,” to track any patterns and gather intelligence, but the task force has yet to yield a breakthrough. The persistent mystery has also drawn the attention of the media, which has played a pivotal role in shaping public perception. In 2015, a popular investigative documentary series aired a segment on the “Stoneman,” interviewing forensic experts and former police officers..

The segment highlighted the chilling nature of the killings and the difficulty in tracing a suspect. It also sparked a wave of online speculation, with some citizens accusing political rivals of covering up evidence, thereby inflaming already tense community relations. Community response has been equally mixed..

In 2019, a grassroots organisation formed by former street dwellers began holding nightly vigils along known crime corridors, urging the police to increase night patrols. The vigils have been met with mixed support from local authorities, who have cited budget constraints. Yet, the vigils have succeeded in keeping the issue in the public eye and have, in some cases, deterred new incidents..

Despite ongoing investigations, the case remains open and unsolved. In 2021, a new body was discovered in a Kolkata slum, the skull again crushed in a manner identical to previous cases. The forensic report confirmed that the same stone used in earlier murders had been employed, raising questions about whether the same killer or an individual with access to the stone is responsible..

The police have expressed frustration at the lack of tangible leads, but have vowed to intensify surveillance in high‑risk areas. The enduring nature of the “Stoneman” mystery has also led to a broader conversation about the safety of India’s most vulnerable citizens. In 2022, a parliamentary committee held a hearing on the plight of homeless individuals, citing the serial killings as a case study..

Law‑makers demanded better policing in slum areas, more stringent identification protocols for homeless populations, and greater community involvement in crime prevention..