A man shot and killed his three children, their chaperone and himself during a supervised visit with the kids Monday at a church in Sacramento, California, authorities said.
Skype has announced that its US users can now use the platform to dial 911 from their home computer and that its software can share their location with emergency services if required.
Al-Qaida leader Ayman al-Zawahri appeared in a video marking the 20th anniversary of the Sept 11, attacks, months after rumors spread that he was dead.
The FBI late Saturday released a newly declassified 16-page document related to logistical support provided to two of the Saudi hijackers in the run-up to the Sept 11, 2001, terrorist attacks.