The Biddeford City Council has voted unanimously to seize by eminent domain a convicted double murderer’s ramshackle home and tear it down. The 8-0 vote Tuesday night will allow the city to make the property part of a nearby neighborhood park. Mayor Alan Casavant says the city will pay the current appraised value of $30,000 for the home. Authorities said the home was in poor shape even before Rory Holland shot and killed brothers Derek and Gage Greene in June 2009. They say it was cluttered and had no electricity or running water. In the years since, the home has fallen into further disrepair. Holland was convicted of two counts of murder and sentenced in February 2011 to concurrent life sentences in prison. He claimed self-defense.