President Barack Obama has condemned the murder of a Japanese hostage by the IS
A video posted by the IS warns that Kenji Goto will be executed within 24 hours.
US president called Abe and expressed his solidarity.
The dreaded Islamic State militia on Tuesday posted a video showing two Japanese captives, threatening to execute them if their nation's government failed to pay up a ransom of $200 million (over Rs 1,200 crore) within 72 hours.
The family of slain Steven Sotloff said they were relishing seeing the terrorist being punished.
IS executioner known as 'Jihadi John' was revealed to be a university graduate from London
Jihadi John, the dreaded Islamic State executioner killed in a US drone strike in Syria last week, reportedly fathered a son who is automatically entitled to British citizenship.
The 26-year-old British terrorist was seen executing Western hostages in IS videos.
Kasaesbeh was captured in December after his F-16 jet crashed in ISIS territory