WASHINGTON (Reuters) - The FBI released surveillance video and photos of Navy Yard shooter Aaron Alexis on Wednesday and said he believed electromagnetic waves were controlling him for months before the rampage that killed 12 people.

There are no signs that Alexis, 34, was targeting anybody in the September 16 shooting at the Navy Yard in southeast Washington, said Valerie Parlave, the FBI assistant director in charge of the Washington field office.

"We have found relevant communications on his electronic media which referenced the delusional belief that he was being controlled or influenced by extremely low frequency electromagnetic waves for the past three months," Parlave told a news conference.

http://ca.news.yahoo.com/navy-yard-shooter-thought-controlled-radio-waves-fbi-183020207.html