A former acquaintance of Vincent said the late crook has pals who "won't rest until they get their revenge" for killing "one of their own".
Mr Osborn-Brooks, who was arrested after Vincent's death but later released without charge, has been hailed a hero by some for taking on the burglar and his accomplice, who police are still trying to trace.
The family of the 37-year-old Vincent have been repeatedly trying to put up floral tributes at the site of his death, but neighbours and campaigners keep pulling them down.
"Nobody died in that house, that's why we put them here".
Assistant coroner Sarah Ormond-Walshe told two of his female relatives during a hearing at Southwark Coroner's Court: "I know you are having a terrible time - I am releasing the body now".
Mr Vincent's cousin, Elvina Lee, said it was the "best place" for the shrine to be.
Flowers being attached to the fence yesterday afternoon. "I think they're scum", she said at the scene on Tuesday.
Resident Theresa Webb, 43, said of the shrine: "It was inappropriate, poor taste really".
"If it's a normal person it's different, but he went and burgled a house - it could have been my house". "There were 101 bouquets down there", she added.
While supporters of Osborn-Brooks however have labeled the tribute an "insult" the pensioner, other relatives of Vincent have vowed to remove the tributes if they are respected.
Scotland Yard said it was seeking Vincent's alleged accomplice, Billy Jeeves, 28, in connection with the failed burglary.
Officers were called to reports of a burglary at 12.45am, after two men entered the house on South Park Crescent.#.
Thousands of pounds has been fundraised online to support the pensioner.
Police believe he forced the elderly homeowner into his kitchen armed with a screwdriver, where a struggle ensued and the Vincent suffered a stab wound.
Both men then apparently attempted a getaway, but Vincent collapsed in nearby Further Green Road.
In January, Vincent was named and pictured by Kent Police investigating a distraction burglary in which jewellery and valuables were stolen from a man in his 70s.