A Syrian man on trial in Hungary denied charges Wednesday that he took part in a beheading and other killings in his homeland while a member of the Islamic State group. Prosecutors have charged the 27-year-old identified only as Hassan F. with participating in the beheading of a religious leader in the city of al-Sukhnah in Homs province and involvement in the killings of at least 25 people. Prosecutors said it was Hassan F.’s job to compile a list of those to be killed, which was then approved by IS leaders, and oversee the killings.