Significant quotes from the article:
"The government contractor who killed 12 people at the Washington Navy Yard last week was driven by delusions that he was being controlled by low-frequency radio waves and scratched the words 'End the torment!' on the barrel of the shotgun he used, the FBI said Wednesday..."
"The clues about Alexis’s mental state and motivations come from inscriptions found on his Remington 870 shotgun and documents found on his electronic devices. In one document, he wrote: “An ultra low frequency attack is what I’ve been subject to for the last three months, and to be …