Bin Laden Son-in-Law Found Guilty Sulaiman Abu Ghaith faces life in prison By Newser Editors and Wire Services Posted Mar 26, 2014 10:10 AM CDT 21 comments Comments In this undated image made from video and provided by by Al-Jazeera, Sulaiman Abu Ghaith, is shown. (AP Photo/Al-Jazeera, File) (Newser) – Osama bin Laden's son-in-law was found guilty of conspiring to kill Americans today, ending a landmark terror trial in New York City. Sulaiman Abu Ghaith now faces up to life in prison for serving as al-Qaeda's spokesperson in the wake of the 9/11 attacks, the AP reports. The Kuwaiti cleric, captured in Jordan last year, is the highest-ranking al-Qaeda figure to be tried on US soil since those attacks. In one video shown at his trial, Abu Ghaith said al-Qaeda would rain an endless "storm of airplanes" on the US. For more on the case, click here.