Caputo's resignation came in a letter to campaign chairman Paul Manafort and Rick Gates.
Isis implements its version of Sharia Law in their so-called 'caliphate' in Syria and Iraq.
Former leaders Ed Miliband, Gordon Brown and Neil Kinnock will also take part in the day of action.
Michael Sandford, 20, tried to grab a police officer's gun at a Las Vegas rally.
NatCen says the UK will vote 53% for Remain and 47% for Leave at the 23 June ballot.
In a bloody counter attack, Islamic State militants have killed dozens of Syrian regime fighters.
A new Brexit poll showed a swing in favour of the 'remain' camp ahead of the 23 June vote.
The currency speculator says the UK economy will get none of the benefits it did when it left the ERM in1992.
Brain tumours, especially malignant gliomas, more frequent in people with higher levels of education.
The shocking double killing took place in the village of Thikriwala in the Punjab province
The Three Lions failed to breakdown their stubborn opponents in Saint-Etienne.
He was kicked out of France after scuffles surrounding Russia's match with England.
Her husband Brendan Cox paid tribute to the outpouring of generosity that will 'change lives' in Syria and the UK.
The 24-year-old died after being 'kicked like a football' in an horrific attack by seven teenagers.
The court heard how 'evil voices' told Fabienne Kabou to kill 15-month-old Adélaïde in Berck-sur-Mer.
President Rodrigo Duterte follows through on his pledge to tackle drugs trade and kill thousands of criminals.
The Labour leader gave his only live set piece TV appearance of the campaign on Sky News.
The highly-rated midfielder is currently playing for Switzerland at Euro 2016 in France.
Arsenal stopper has not managed to recover from thigh injury sustained against Northern Ireland in Nice.
In the latest oddly-coloured food trend of the summer, Spanish winemakers Gik have gone blue.
UK government to bolster ICO capabilities with fines on firms that fail to protect data.
Murder probe launched after man and women in 50s found dead in Fulham Court flat.
IBTimes UK explains the DAO cyber heist, and what's next for the Ethereum community and the hacker behind it.
Salivate over Rick Stein's dishes if you are fed up with Euro 2016.
Arrests follow weekend raids which saw three charged with plotting terror attacks.
The 29-year-old star finds himself in a tug-of-war between Leicester City and the Emirates outfit.
President Fikret Orman admitted the Turkish champions may have to search for alternatives.
Newspaper stables reveal split over European Union membership after Sundays nail colours to the mast.
The car firm claimed its logo had been used in Brexit literature without its approval.
Italian's agent reveals he was recently tricked by a journalist over a potential move to Besiktas.