Former interim Delaware County Sheriff Mark Wolfe has been charged with possessing child pornography. Federal prosecutors say agents found hundreds of kiddie porn images and videos on Wolfe's home computer. Prosecutors say a shared file containing child pornography was traced to his IP address. The 50-year-old was interim sheriff for a week in 2007, making headlines with an investigation into child porn on former Sheriff Al Myers' computer. Wolfe ran unsuccessfully in 2000 and 2004.