Son-in-law of Pa. Gov. Tom Corbett under investigation PHILADELPHIA, Feb. 1 (UPI) -- Pennsylvania Gov. Tom Corbett said Thursday he was "surprised" to learn his son-in-law, a Philadelphia police detective, is under investigation. Sources told The Philadelphia Inquirer Gerold Gibson had been put on desk duty following an FBI sting. Gibson, a narcotics detective, allegedly stole $400 in marked money federal agents and officers with Philadelphia Internal Affairs had placed in a car. Corbett, in Philadelphia for an event sponsored by the Greater Philadelphia Chamber of Commerce, declined to answer reporters' questions about Gibson. WCAU-TV reported he released a statement a short time later. I was surprised and concerned to learn about the allegations regarding my son-in-law Gerold Gibson. Susan and I continue to give our family our love and support," the statement said. Sources said Gibson is separated from Corbett's daughter, Katherine, who is a deputy attorney general assigned to the Philadelphia office. Corbett, a Republican, served as Pennsylvania attorney general before becoming governor in 2011. He was born in Philadelphia but has spent most of his adult life in the Pittsburgh area.