Three teenagers have been charged with murder after a 17-year-old was found dead in a canal in west London.
Victor Lee, from Ealing, was found in the water below Scrubs Lane, near Willesden Junction, at around 5:45pm last Sunday.
He was removed from the canal but, despite efforts to save him, he was pronounced dead at the scene at 6:09 p.m.
A post mortem examination on Wednesday concluded that he died of stab wounds.
Detective Chief Inspector Brian Howie of Crime Squad, who is leading the investigation, said: “We continue to provide support to Victor’s family during this traumatic time and our thoughts remain with them.
“We made three arrests as part of our investigation into Victor’s murder.
“However, I still need to hear from someone who has information about what happened last Sunday.
“Were you in the Grand Union Canal towpath area near the Scrubs Lane bridge, or were you traveling on Scrubs Lane, between 5:15 pm and 6:15 pm?
“Did you see a fight or did you hear anything that might help with the investigation?
“If you were driving in the area and have a dash cam, please check your video and contact us or Crimestoppers on 0800 555 111.
“My team will be in the vicinity of Scrubs Lane tomorrow, Sunday July 2, as part of a proactive request for information.”
Three boys, ages 14, 15 and 17, were charged Saturday with murder and robbery.
They will appear in custody at Highbury Magistrates Court on Monday.
Police have renewed appeals for information and witnesses to the murder.
Anyone with information should call the police on 101 or tweet @MetCC, citing CAD5828/June 25, or call Crimestoppers.