Who Is Tomislav Salopek? ISIS Execution Deadline Looms For Croatian Hostage Held By Islamic State Branch in Sinai

It has been two days since the Sinai branch of the Islamic State group released a video threatening to kill within 48 hours Tomisalv Salopek, a 31-year-old Croatian being held hostage by the group, unless Egyptian authorities released Muslim women from the country's jails. Salopek's father, Zlatko Salopek, appealed to the group Friday to release his son.