The lawsuit seeks $90 million in damages for Assad regime's perceived support of ISIS.
Steven Sotloff's parents will light the first candle for the Jewish holiday at a public ceremony Tuesday in Miami in memory of their son.
The masked Islamic State militant in the videos depicting the beheading of two Americans has been identified, FBI Director James Comey said on Thursday
After the release of 49 Turkish prisoners, the extent of Islamic State's kidnapping is revealed – and ignored
Cantlie: "I'm going to show you the truth as the Western media tries to drag the public back to the abyss of another war with the Islamic state."
A Sotloff family spokesman said the Islamic State paid up to $50,000 to rebels who told the militant group the 31-year-old journalist had entered Syria
A video of ISIS allegedly executing Steven Sotloff, a second captive American journalist has emerged.
U.S. officials say military planners are pondering sending fewer than 300 to tighten security near Baghdad