Barack Obama's spoken about the fatal shooting of two employees from a Virginia TV station describing their deaths as "heartbreaking".
There are now calls for a renewed focus on tackling gun crime in the US after the reporter and cameraman were killed live on air yesterday.
Alison Parker and Adam Ward were gunned down by a disgruntled former employee who later took his own life.
Democratic Presidential candidate Hilary Clinton says America's gun laws need to be dealt with:
