Arsonist who absconded from Derbyshire open prison is arrested Phillip Willis. Picture: Derbyshire police. An offender who absconded from Sudbury open prison in Derbyshire has been arrested. Convicted arsonist Phillip Henry Willis, 65, went on the run yesterday.A Derbyshire police spokesman said: "We'd like to thank the public for their assistance." What will the weather be like today?