Patrick Radden Keefe Investigates Teen's Secret Double Life Before Fatal Plunge

MI6's security cameras were trained across the Thames when Zac Brettler stepped onto the fifth-floor balcony of Riverwalk and began to pace. At 2:24 a.m. on November 29, 2019, he jumped. The fall killed him. A forensic report later determined he nearly cleared the river but clipped his hip on the embankment wall on the way down.

The luxury apartment block at Millbank, Westminster belonged squarely in the world Brettler had spent years pretending to inhabit. The men whose flat he'd spent that final night in knew him as Zac Ismailov, the supposedly disinherited son of a deceased Russian oligarch with a fortune blocked by his mother somewhere in Dubai. His actual name was Zac Brettler. He was 19 years old, the son of a London banker.

He had spent that evening with Verinda Sharma, the flat's owner and a gangland debt enforcer nicknamed "Indian Dave," who had been arrested in a heroin-smuggling operation in 2002 and later linked to a gangland murder in 2003. Also present was Akbar Shamji, 52, a cryptocurrency trader and Mayfair-based businessman whose father, Abdul Shamji, was a millionaire Conservative Party donor. Both men had invested something in the Ismailov fiction, and the question of how that fiction held together long enough to pull a teenager into their orbit is where the story turns complicated.

The alter-ego had been years in construction. Zac attended Mill Hill School, a £30,000-a-year institution in north London whose student body included the children of actual Russian elites. He had become fixated on wealth during his school years, regularly lying about his parents' occupations, slowly building a persona whose plausibility depended on the credulity of people already primed to believe in dynastic money. By the time he crossed into Sharma and Shamji's orbit, the fiction carried enough structural detail to function.

His parents, Rachelle and Matthew Brettler, knew none of this while Zac was alive. On the night he died, Rachelle was miles away expecting him home. Days later, two police officers delivered the news. The grief they carried into the investigation that followed slowly exposed a version of their son they had never known.

The Brettlers hired private investigator Clive Strong and began pulling at threads the Metropolitan Police had left unexamined. Their efforts drew sharp criticism of the Met for what was characterized as a "lack of investigative work": forensic opportunities allegedly missed included blood-like smears found in both the bathroom and bedroom of Sharma's flat. CCTV footage and phone records suggest Sharma and Shamji were aware Zac had gone over the balcony before police were notified.

Patrick Radden Keefe first encountered the case through a chance conversation with a London lawyer on a television set in the summer of 2023. That lawyer's best friend turned out to be Matthew Brettler. Keefe, whose previous investigations traced narcotics dynasties, IRA operatives, and Big Pharma executives, spent the following period reporting a 15,000-word New Yorker piece before expanding his investigation into "London Falling: A Mysterious Death in a Gilded City and a Family's Search for Truth," published by Doubleday and Pan Macmillan and released April 7. "Zac remains a little bit of a cipher," Keefe said in a recent interview. "He's this mysterious kid who lives a double life and dies in mysterious circumstances." A24's UK outpost acquired the television rights in a competitive bidding process, with Keefe attached as executive producer.

What the investigation ultimately assembles is not just a portrait of one teenager's fabricated identity but an autopsy of the infrastructure that made the fabrication viable: a city where oligarchic mythology travels on social proof alone, where gatekeepers in both private enterprise and public policing failed at every juncture, and where the only people who kept pressing for answers were two parents who had never once heard the name Zac Ismailov.