ITV News has obtained footage of paeadophile William Vahey teaching in a classroom.
An FBI investigation into the teacher has uncovered up to sixty images of students at the Southbank International School in London on his computer.
It is believed the 64-year-old preyed on scores of boys during his teaching career across the world before his suicide.
ITV News Correspondent Nina Nannar reports:
More top news
Kurt Cochran and his wife Melissa had been visiting London from the US to celebrate their 25th wedding anniversary and were due to fly home.
The Government has previously described the new coin - which enters circulation tomorrow - as "harder to counterfeit than ever before".
The European bloc said that Russia should release hundreds of people it arrested at anti-government protests and rallies.