The ex-partner of a man shot and killed by police said she will fight for justice and make sure the cop who fired the bullet "will hang for" the killing.
Graham Trinder, 57, was shot by police while carrying an air rifle outside a party in Swindon, Wiltshire.
The mother of his two children, Nikki Liddell, 53, said he couldn't have been a "prouder" dad to his two boys, Louis, 25, and Charlie, 22.
Nikki claimed Graham had had the air rifle ever since he was a kid and would "shoot cans in the garden with it."
She called Graham a "loveable rogue" who "looked like quite a hard man" but said all his neighbours on Summer Street, where he had lived for 25 years, loved him.
Distraught Nikki said she will make sure her boys will "get the justice they deserve for their dad" and slammed police who shot him on a "normal street.
She said: "It was just a stupid air rifle. He'd had it since he was a kid, he used to shoot cans in the garden with it. And now it's come to this.
"That police officer will hang for this. I'll make sure of it.
"I'm going to see to it that my boys get the justice they deserve for their dad.
"This is just totally wrong. What is wrong with the world?
"Just because police have the authority to have guns, does not mean that they have to shoot them at a normal person, on a normal street."
Nikki said Graham had owned several properties - including one in Cyprus - and often used to take his sons travelling with him.
She said: "He used to love tinkering about with cars, and would always help the boys with theirs. He'd even help me with mine.
Ex Nikki said: "You couldn't have found a prouder dad to our two boys.
"Our youngest son, Charlie, is in the RAF up in Birmingham, and Graham was so proud of him. He was so proud of both of them.
"They loved him to absolute bits. That was their dad.
"He was a good bloke. Regardless of what happened in our relationship, I would never diss their father - and I won't have anything bad said about him now."
"All his neighbours loved him. They all said what a lovely fellow he was, and how he always said hello to them and their kids.
"He would always include me in what was going on with the boys. We were always a family unit, even after we separated when Louis was about eight.
"We would go for family meals together for the boys' birthdays, and he would invite me round for barbecues or for dinner with the boys.
"He looked like quite a hard man, with his bald head and big chest, but he was a loveable rogue.
"I last saw him about a month ago, but we were always in contact over text."
The Independent Office for Police Conduct (IOPC) confirmed on Sunday they were investigating.
They said: "At this early stage it is believed a 57-year-old man has been fatally shot during the police response to reports of two men arguing in the street.
"He was declared dead in an ambulance at 2.56am.
"Our thoughts and sympathies are with all of those affected by this terrible incident.
"IOPC investigators are at the scene, and the post incident procedures where the key police witnesses will provide their initial accounts.
"It is mandatory for us to conduct an independent investigation when the police fatally shoot a member of the public. We have established protocols with the police to ensure our investigations do not hinder their ability to conduct enquiries as part of their related investigations."