An Arizona prosecutor said the man arrested in the three-time 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,

Jeffrey Kelly is detained for shootings at a DNC office in Phoenix; an arsenal of weapons was found at his home.

The man, Jeffrey Michael Kelly, 60, was arrested Tuesday, according to the authorities. Mr. Kelly also set out anti-Democratic Party signs lined with razor blades near his home, attaching bags filled with an unknown white powder and labeled “Biohazard,” according to court papers.