Hamzeh Abu Zeilah alleged to have began watching content of terrorist group online, and contacted its members via TikTok

Two men linked to local Islamist group behind efforts to kill Hindu leaders; Israeli intelligence said involved in probe, security stepped up at Jewish sites

Though succession of Ayman al-Zawahri not officially announced by terror group, most UN member states say commander is its 'uncontested leader'

German intelligence services estimate more than 1,150 people traveled from Germany to Iraq and Syria since 2011 for Islamist reasons

Omar Sheikh will turn to Pakistan Supreme Court to seek release from jail after conviction was overturned in 2002 killing of American Jewish journalist

Justice Department 'stands ready' to take custody of Omar Sheikh, who was ordered released from a Pakistani jail after acquitted of 2002 killing of American Jewish journalist

Pakistani court to hear case against Ahmed Omar Saeed Sheikh, initially sentenced to death for Jewish reporter's 2002 kidnapping and beheading

Qamar Gul guns down men with family's AK-47, earning praise across social media

Karachi court sparked outrage last month when it cleared quartet convicted in reporter's 2002 kidnapping and beheading

After court overturns murder conviction of Ahmed Omar Saeed Sheikh, government says he and 3 others will remain jailed for now