A black man who died while in police custody in Baltimore suffered an injury like those in shallow-water diving accidents, the autopsy reveals.
Aaron Alexis’s mother has said sorry to the victims caught up in the shooting spree by the former navy reservist.
The FBI has identified the dead gunman who killed 12 people at a Washington navy yard and eliminated the possibility of a second suspect.
A shooter and several people have been killed when at least one gunman opened fire at the Washington Navy Yard in Washington DC, say authorities.
US soldier Bradley Manning has been sentenced to 35 years in a military prison for leaking classified information to WikiLeaks in 2010.
Marches, speeches and global bell-ringing are set to mark the 50th anniversary this month of Reverend Martin Luther King Jr’s "I Have a Dream" speech.
The US soldier accused of the biggest leak of classified information in US history, goes on trial in a case that raises questions about secrecy.
A day after a tornado has torn through Oklahoma City’s Moore, its mayor Glenn Lewis says he believes all the dead and missing have been accounted for.
Emergency workers have found over 100 survivors in an Oklahoma town hit by a tornado, while the death toll for the storm was lowered to 24.
The search for the remaining 19-year-old man suspected of bombing the Boston Marathon on Monday continues, as cities remain under lockdown.