A new video featuring senior Al-Qaeda ideologist Abu Yahya al-Libi, who the United States said was killed last week after a drone strike in Pakistan, was posted online Tuesday, monitoring services said. In the video, Libi denounces Syrian President Bashar al-Assad as a "tyrant" and calls his government a "criminal regime," according to SITE's translation. US officials refer to al-Libi as Al-Qaeda's number two. Duration: 00:40