Alexis was kicked out of military in 2011 for disciplinary problems but was working at Washington navy yard when attack took place.
Alexis identified by fingerprints after dying in fight which killed at least 12 people.
Suspects in military-style uniforms hunted after rampage at key naval HQ in Washington DC.
Controversial economist concludes he carries too much baggage
Larry Summers blamed for helping to cause the financial crisis.
The US Federal Reserve's FOMC to meet on 17-18 September.
Military strikes an option if Syria delays chemical weapons destruction, says US.
Benjamin Netanyahu and John Kerry to discuss US-Russia agreement on eliminating Syria's chemical weapons arsenal.
Market players to track Fed's FOMC meeting on scaling back bond buying programme.
John Kerry and Sergei Lavrov said to be close to agreement on Syria's chemical weapons arsenal as talks enter third day in Geneva.
Boulder County north of Denver worst hit by week of rain, swollen rivers and mudslides.
Western powers want the Syrian government to hand over its chemical weapons.
Russian president says military strike on Syria could spark new terror attacks and worsen Middle East situation.
Obama includes US ambassador Chris Stevens and US diplomatic staff killed in Benghazi on 11 September, 2012, in eulogy.
US and Russia to explore a diplomatic solution to solve Syrian crisis.
US and Russia to explore a diplomatic solution to solve Syrian crisis after chemical weapons attack.
US President Barack Obama addresses Americans from ornate East Room of White House over Syria military action.
US president postpones Congress vote on Syria military action but remains sceptical about Assad's pledge.
Foreign minister Walid al-Moallem agrees to put stockpiles under international control to avoid 'US aggression'.
Russia also working on scheme to avoid US-led military strike against Bashar al-Assad regime
Damascus welcomes Moscow proposal to destroy chemical stockpiles to avoid US strike.
EU foreign policy chief Catherine Ashton urges Washington to await UN inspectors' report.