Interesting that the media references the DC Sniper shootings in the story but fails to mention that those shootings were Jihadist inspired. That is a possibility in this case.
DC Sniper jihad evidence:
"Exhibit 65-006: A self-portrait of Malvo in the cross hairs of a gun scope shouting, 'ALLAH AKBAR!' The word 'SALAAM' scrawled vertically. A poem: 'Many more will have to suffer. Many more will have to die. Don't ask me why.'
"Exhibit 65-016: A portrait of Saddam Hussein with the words 'INSHALLAH' and 'The Protector,' surrounded by rockets labeled 'chem' and 'nuk.'
"Exhibit 65-043: Father and son portrait of Malvo and Muhammad. 'We will kill them all. Jihad.'
"Exhibit 65-056: A self-portrait of Malvo as sniper, lying in wait, with his rifle. 'JIHAD' written in bold letters. . . .
"Exhibit 65-067: A suicide bomber labeled 'Hamas' walking into a McDonald's restaurant. Another drawing of the Twin Towers burning captioned: '85 percent chance Zionists did this.' More scrawls: 'ALLAH AKBAR,' 'JIHAD' and 'Islam will explode.'
"Exhibit 65-103: A lion accompanies chapter and verse from the Koran ('Sura 2:190'): 'Fight in the cause of Allah those who fight you and slay them wherever ye catch them.'
"Exhibit 65-109: Portrait of Osama bin Laden, captioned 'Servant of Allah.' [Pictured above.]
"Exhibit 65-117: The White House drawn in crosshairs, surrounded by missiles, with a warning: 'Sep. 11 we will ensure will look like a picnic to you' and 'you will bleed to death little by little.' . . .