Met Police
Blue Stevens was stabbed in Knightsbridge on 9 July
Three men in their 20s have been arrested in connection with the murder of Blue Stevens, who was stabbed to death in Knightsbridge on 9 July.
Two of the men were arrested at an address in Hounslow on 12 July; one on suspicion of conspiracy to murder, and the other on suspicion of murder.
Following their arrests, Met officers obtained a warrant to search two properties in Chiswick and recovered significant evidence. A third man was arrested on Monday on suspicion of assisting an offender, the force said.
Det Ch Sup Christina Jessah said: "These arrests mark a significant milestone in this complex and unfolding murder investigation."
She said detectives were keeping open minds around motive, and they were considering if this "may have been a targeted attack".
She said there were increased police patrols in the Knightsbridge area as a result.
Mr Stevens was found with stab wounds in Seville Street at 21:24 BST on 9 July and died at the scene.
The 24-year-old was from Yateley, Hampshire. His family have been informed and are being supported by specialist officers.