The woman who was murdered in triple shooting at Harlesdon Police named 46-year-old Michelle Sadio.
Police were called at around 9.15pm on Saturday to Gifford Road, Brent, where the woman was pronounced dead at the scene.
Official identification has not been made, but police say they believe the victim is Michelle.
Two men, both in their 30s, were also injured.
One is in hospital in critical condition. The other man’s injuries are not believed to be life-threatening.
No arrests have been made, and the investigation into the shooting continues, the police added.
Supt Tony Josephs, from North West Command which covers Brent, said: “This is a truly shocking incident where one woman has died and two others have been injured, and I understand the concern this will cause the local community and those across London.
“I want to reassure people that a team of experienced detectives are already working hard to piece together the events of last night and identify who is responsible for this heinous act of violence.
“If you were in or around Gifford Road at the time of the shooting, or have any information about who is responsible, please contact us. The family is devastated and we must work together to provide them with answers.”
More to come on this breaking news…