It felt almost like a reconstruction of the events two years ago. Then, outside Stormont Castle, the First and Deputy First Ministers had appeared alongside Hugh Orde and Martin McGuinness delivered his memorable line describing dissidents as "traitors to the people of Ireland".
Today the rain meant the show of solidarity took place indoors. There were a few other tweaks to the choreography - Northern Ireland now has a new Chief Constable, Matt Baggott, and a local Justice Minister, David Ford. But the intention was the same - to send out a message of unity and strength. Martin McGuinness called the dissidents' campaign a "useless war against peace" - not quite as catchy as his previous quote but it got the message over just the same.
The politicians didn't want to be drawn on what divides them - for example, the decision by the Secretary of State to drop the rule requiring the police to recruit equal numbers of catholics and non-Catholics. Unionists campaigned for 50/50 to be dropped, nationalists thought it premature. But the First Minister regarded it as irrelevant to the weekend murder, whilst the Deputy First Minister insisted that young Catholics would not be deterred from joining the police in the future.
On Inside Politics yesterday Margaret Ritchie also said she wanted to avoid making political points. But under questioning the SDLP leader reiterated her opposition to dropping 50/50 and questioned the advice which she thought "securocrats" had been giving to the Secretary of State Owen Paterson before he made his decision.
This morning the Ulster Unionist leader Tom Elliott condemned Constable Kerr's murder as senseless. But he insisted that some mainstream republicans, including politicians in government, "know who these people are" and should be doing more to provide evidence. Martin McGuinness says anyone with information should give it to either the Garda or PSNI. But the Ulster Unionists don't appear convinced, pointing out that the Sinn Fein Minister Michelle Gildernew recently gave the former IRA member Gerry McGeough a reference as he awaited sentencing on an historic crime. They accuse Sinn Fein of sending out "mixed messages".
On top of this, Ronan Kerr's murderers struck during an election campaign, posing the parties with dillemmas about how best to respond. Both the DUP and the SDLP postponed campaign events due to take place today, whilst Sinn Fein pressed ahead with an event at Belfast's Waterfront Hall insisting that the dissidents must not be allowed to set the agenda. There are also indications that some politicians weren't happy that this morning's appearance alongside the Chief Constable didn't include all the main party leaders.
So there are differences over the details - but the rejection of violence and a determination to press ahead with peaceful democratic politics encompasses all the main players in this Assembly election campaign.