** FILE ** A woman blows a kiss as she lays a floral tribute in memory of the victim outside the Royal Artillery Barracks near the scene of a terror attack in Woolwich in southeast London on Thursday, May 23, 2013. A member of the armed forces was attacked and killed by two men on Wednesday. (AP Photo/Sang Tan)

** FILE ** A woman blows a kiss as she lays a floral tribute in memory of the victim outside the Royal Artillery Barracks near the scene of a terror attack in Woolwich in southeast London on Thursday, May 23, 2013. A member of the armed forces was attacked and killed by two men on Wednesday. (AP Photo/Sang Tan)