This is the first picture of a young man stabbed to death near Westminster Abbey in central London.
Farmanullah Sherzad, 26, collapsed in Abbey Orchard Street on Friday evening.
The Metropolitan Police were called to reports of a stabbing in Westminster at 10.17pm.
Officers arrived within minutes and found a man suffering from stab wounds.
Despite the efforts of officers and paramedics, the victim was later pronounced dead in hospital.
Mr Sherzad’s killing happened just a few minutes’ walk from the abbey and St James’s Park.
Two men - aged 18 and 21 – arrested on suspicion of murder remain in custody.
Separately, a 26-year-old man was shot dead while sitting in a car near Euston station in central London on Saturday night.
He died at the scene in Chalton Street despite the efforts of paramedics to save his life.
Detective Chief Inspector Wayne Jolley, who is leading the Sherzad murder investigation, said: “These arrests mark significant progress in what continues to be a fast moving and complex investigation.
“To provide reassurance, officers will be carrying out extra patrols in the area over the coming days and will be available to speak with anyone who has concerns.”
A post-mortem examination confirmed that Mr Sherzad’s death was caused by multiple sharp force trauma injuries.
His family have been made aware and officers continue to support them.
Anyone with information that may assist detectives is urged to call 101, quoting CAD 8270/27MAR, or Crimestoppers anonymously on 0800 555 111.
