Arizona DNC office shooting: Over 120 guns found in home [Video]

TEMPE, Ariz. –

An Arizona prosecutor said the man arrested in the shooting of a Democratic National Committee office in suburban Phoenix had more than 120 guns and over 250,000 rounds of ammunition in his home, leading law enforcement to believe he may have been planning a mass casualty event.

Maricopa County prosecutor Neha Bhatia said at Jeffrey Michael Kelly’s initial court appearance on Wednesday that federal agents told her about the large seizure made after Kelly’s arrest. Scopes, body armour and silencers were also found, she said. A machine gun was discovered in the car he was driving.

• The information you need to know, sent directly to you: Download the CTV News App

The sheer size of the cache led authorities to believe “this person was preparing to commit an act of mass casualty,” Bhatia said.

Police said Kelly, 60, allegedly fired BB pellets and then gunshots at the glass front door …