(CNN) — Arizona investigators surveilling the man accused of shooting at the Democratic National Committee office in a suburb of Phoenix saw him posting political signs with<a class="excerpt-read-more

Authorities searching the home of a 60-year-old man accused of shooting at a Democratic National Committee office in Tempe, Arizona, discovered an extensive collection of weapons — including 120 guns,

Arizona investigators surveilling the man accused of shooting at the Democratic National Committee office in a suburb of Phoenix saw him posting political signs with bags of a white, powdery substance attached,

The suspect was also arrested for allegedly hanging suspicious bags of white power from political signs lined with razor blades.