Dubuque County authorities have four suspects in a window-breaking vandalism spree last month.The Dubuque County Sheriff, along with the police in Dyersville, Farley and Epworth say the four are suspects in the shooting out of several car windows October 20 and 21st. The damage is estimated at 45 to 50-thousand dollars in the incidents in Dyersville, Farley, Epworth, Holy Cross, Luxemberg, New Vienna and Dubuque County.The names of the suspects have not been released.