A vigil for Mark Duggan will take place today in protest against what his family have branded a "perverse" inquest finding that he was lawfully killed by police.
The 29-year-old's relatives and supporters are set to gather outside Tottenham Police Station in north London from 2pm and have appealed for the event to remain peaceful.
There were concerns that the crowds would clash with football fans going to see Spurs v Crystal Palace, but the match is also set to go ahead.
On Thursday Britain's most senior police officer and Prime Minister David Cameron both urged supporters to remain calm at the vigil.
The commissioner of the Metropolitan Police, Sir Bernard Hogan-Howe, thanked the Duggan family for their public calls for peace, and said: "A vigil is to commemorate Mark Duggan's death, that's what the vigil is about.
"It's a terrible tragedy that someone's lost a life in this case, and clearly the family want to register, I believe, their protest about the outcome of the inquest.
''They've got every right to do that, and we as the police have got every opportunity to facilitate that so that's exactly what we will do.
''We will continue to talk to the family and others to keep our communications alive, and also to make sure, as I believe, that the protest will happen and that there won't be disorder.''
Mr Duggan's aunt Carole said that she wanted "no more violence".
Unrest erupted after protests during the immediate aftermath of Mr Duggan's death in August 2011. He was shot dead by a police marksman after officers stopped the taxi in which he was travelling.
Police believed he was going to collect a gun from another man, Kevin Hutchinson-Foster, and then travel on to Broadwater Farm, also in Tottenham.
More than two years on, anger again spilled over at the Royal Courts of Justice on Wednesday, when an inquest jury found that he was lawfully killed.
They said it was most likely that he had a gun with him in the minicab, but had thrown it onto a nearby grass verge before he was shot.
Family and friends of the father-of-six shouted and swore, and his brother Marlon had to be physically restrained as the conclusions were read.
Outside the court, Assistant Commissioner Mark Rowley was drowned out by protesters shouting "murderers" and "scum" as he tried to make a statement on Scotland Yard's behalf.