Four men have been arrested on suspicion of conspiracy to murder after a fatal shooting in Camden.
Nahom Medhanie, 26, was shot dead while sitting inside a white Nissan Juke outside Euston station in March.
Emergency services rushed to Chalton Street at around 11pm, but despite their efforts, Mr Medhanie was pronounced dead at the scene.
Four men, aged 27, 32, 30 and 27, have been arrested on suspicion of conspiracy to murder in relation to the death of Mr Medhanie on March 28.
The arrests follow a series of dawn raids carried out by officers at seven addresses in Camden, Islington, Enfield, Brentford and Brent on May 12.
In searches of the seven addresses, officers found a quantity of suspected illegal substances at three of the locations.
Three further men, aged 24, 26 and 29, were arrested on suspicion of possession with intent to supply controlled drugs.
CCTV enquiries showed that Mr Medhanie was shot several times while sitting in a white Nissan Juke by the suspect, who arrived and left on a bike.
Detective Chief Inspector Joanna Yorke, who is leading the investigation, said: "Nahom’s murder was a shocking and calculated act which has caused considerable concern in the local community.
"Officers will continue to act decisively as we work to tackle incidents of serious violence across London.
"Our thoughts remain with Nahom's family at this difficult time."
Nahom’s family, who are being supported by specialist officers, said in a tribute: “Nahom was more than a son and a brother to us and since his passing it has been the hardest days of our lives.
“He was funny, honest and would just light up the room with his presence and that’s what we loved most about him.”
His family has asked for privacy at this time.
Anyone with information is asked to contact the police on 101, quoting CAD 8032/28MAR or Crimestoppers, anonymously, on 0800 555 111.
