The names of 20 children and their six teachers were read out today, six months after they were shot dead at Sandy Hook in one of America's worst school shootings.
Since the school massacre, thousands more people have died from gun crime in the US.
The parents of the children killed in December are still fighting for a change in gun laws.
This report is by ITV News Washington correspondent Robert Moore:
A special Tonight: America and its Guns was broadcast at 19.30pm on ITV
More top news
Amid tension between his supporters and Hillary Clinton's, Bernie Sanders called for unity to prevent Donald Trump becoming president.
Ofcom proposed that BT's Openreach network become a "distinct company" within the BT Group - but stopped short of calling for a sell-off.
Most areas should start off dry, but showery outbreaks of rain will move eastwards across the UK throughout the day.