Boyfriend of Citibank boss, 43, found bludgeoned to death in her luxury London riverside flat is arrested in Kenya

By MATT STRUDWICK, SENIOR NEWS REPORTER Published: 09:10, 21 June 2026 | Updated: 09:11, 21 June 2026 The boyfriend of a Citibank boss who was found bludgeoned to death in her luxury London riverside flat has been arrested in Kenya.  Brian Kiprop Kipglagat was being tracked by undercover police before immigration officers detained him on June 10 as he attempted to travel to Tanzania.  He tried to enter the East African country from the southern Kenya border town of Namanga on a temporary permit.  Mr Kipglagat now faces extradition to Britain following a 16-month international manhunt. His 43-year-old girlfriend, Marianne Kilonzi, was discovered by officers with a fatal head injury at her home in Woolwich in January last year. Mr Kipglagat appeared at the Milimani Law Courts earlier this month.  According to local media, the court was told he allegedly sent a text message to Miss Kilonzi's relative describing her death as a 'misfortune'.  The hearing heard detectives believed he was still in possession of the mobile phone he used to send the message.  Joyce Olajo, prosecuting counsel, told the court Mr Kipglagat had no fixed address in Kenya and had been moving between various locations.  He was also in possession of a number of travel documents, some of which are thought to have been obtained fraudulently, the hearing heard.  Marianne Kilonzi, 43, who worked as a banker, was found dead at her home in Woolwich, southeast London,in January 2025 Officers were called to the 43-year-old's home on Argyll Road in Woolwich, southeast London, following concerns for her well-being Miss Olajo successfully argued for Mr Kipglagat to be remanded at the anti-terrorism police unit after describing him as a 'flight risk'.  Ms Kilonzi had worked at Citi for more than 18 years, according to her LinkedIn profile, and previously ran a company fundraiser for Cancer Research. A spokesperson for Citi told the Daily Mail last January: 'We are deeply saddened by the tragic loss of our colleague. Our thoughts are with Marianne's family and friends during this difficult time.'   'Blood-curdling screams' had been heard coming from the flat in Argyll Road, where house prices are £442,000 on average, by a neighbour earlier that day. A post-mortem examination found Ms Kilonzi died from a blunt force trauma injury to the head.  Neighbours are said to have raised concerns with investigating police officers after hearing a loud disturbance coming from her apartment. Residents of the exclusive Royal Arsenal Riverside development were questioned about the 'noisy disturbance' at her first floor apartment. Ms Kilonzi's lifeless body was found after police officers entered her property following concerns for her safety. Sorry we are not currently accepting comments on this article.