A suspect has been arrested in connection with three separate shootings in 20 days that damaged a Democratic National Committee campaign office in suburban Phoenix, authorities said Wednesday. Tempe police said Jeffrey Michael Kelly, 60, also is accused of hanging several political signs lined with razor blades on Tuesday in Ahwatukee, an affluent suburb of Phoenix where most voters have chosen Democrats in recent elections. Authorities said the hand-painted signs were attached to palm trees and appeared to criticize Democrats and their presidential nominee, Vice President Kamala Harris.