Navy Yard shooting: CCTV shows gunman Aaron Alexis
The FBI has released footage of gunman Aaron Alexis during a deadly rampage at a Navy Yard in Washington.
He killed 12 people on 16 September, before he was shot by police in a running gun battle.
During a press conference, a spokeswoman said the 34-year-old believed he was being controlled by "extremely low frequency (ELF) radio waves".
Mark Mardell reports.
25 Sep 2013
- From the section US & Canada