The SITE Intelligence Group, which monitors jihadist media, identified the shooter as Mohammed al-Shamrani, and said that prior to opening fire he condemned America as a "nation of evil" in an online manifesto on twitter, according to media reports.
The US president announced the move during his first State of the Union address, reversing his predecessor Barack Obama's decision to close the controversial site "as soon as practicable".
Showing up for a hearing at the United States military court in Guantanamo Bay in Cuba is an ordeal for the detainees and a logistical burden for the American military, which has to transport the terror suspects from the detention facility to 'Camp Justice' inside the US Naval base in Cuba.
The five detainees at Guantanamo Bay charged with planning the 9/11 attacks have filed a document accepting full responsibility for the killing of nearly 3,000 people, a media report said on Tuesday.
The USS Trenton Landing Platform Dock 14 is set to be the second largest ship with the Indian Navy, after the aircraft carrier Viraat.