A woman who was shot dead in Hackney, east London, on Tuesday has been named as Lianne Gordon.
The 42-year-old died at the scene in Vine Close.
A 20-year-old man and a 16-year-old boy were taken to hospital, where their conditions are being assessed.
The Metropolitan Police said the force is considering the possibility the shooting was "gang-linked".
Flowers were laid outside the police cordon on Wednesday alongside a card which read: "To Lianne: Such a beautiful soul gone too soon!"
Jackie Finnigan, who has known Mrs Gordon for 15 years, said she was "completely heartbroken" when she found out her "best friend" had been shot.
"She never did any harm to anyone. She only wanted the best for everyone. She was an amazing person and I can't believe she's gone," she told Sky News.
"I had to come here today because I had to see it for myself because I was in denial because I couldn't believe that someone like that would get shot.
"I want people to know she wasn't a degenerate, she wasn't involved in gangs and guns and knives and stuff. She wore her heart on her sleeve and she was the most adorable person that you could come across."
'She was a lovely person'
Neighbour Shohid Uddin said he and his family knew Mrs Gordon well.
"She's very nice and talked to us all the time - even my mum who can't speak English would chat with her," he said.
"She was a lovely person. Always smiling and joking."
Police considering possibility shooting 'was gang-linked'
A murder investigation has been launched but no arrests have been made so far.
Metropolitan Police Detective Chief Superintendent James Conway said: "We believe all the victims of the shooting were known to each other but they were not related.
"I want to offer my most sincere condolences to the family and friends of the victims and also to all of those affected in the wider community by this incident.
"A murder investigation has been launched by homicide detectives from the Met's specialist crime command, they're being supported by local and specialist officers from my team here in Hackney to Tower Hamlets.
"I want to assure everyone that this will be a painstaking investigation. We are determined to bring those responsible to justice.
"It is important that we keep an open mind regarding motive and we will follow the evidence. It is too early in this investigation to comment further on motive though we are considering the possibility that this was gang-linked."
He said officers are investigating whether the shooting is linked to a separate incident of shots being fired on the same road days before.
"In response to that separate incident officers found shell casings at the scene but there were no trace of any victim or suspect," he said.
'Community will be shocked'
The Mayor of Hackney Caroline Woodley offered condolences, saying: "I just want to say this is an absolutely heartbreaking incident and my thoughts and everyone's at the council's are with the loved ones of Lianne and of the other injured victims.
"We are working with the police to support the families of the victims and will continue to do so in the coming weeks and months.
"We are also working with local schools and community groups to offer any support they need.
"While incidents like this are thankfully rare in Hackney, we know that the community will be shocked, worried and distressed. Council officers are in the area to support the police investigation and provide reassurance to local people. We also have outreach workers in the area to make sure people can speak to us about any concerns they have."