Louisville Mayor Greg Fischer says he’s begun the process of finding candidates to be the next chief of police. Current Chief Robert White has announced he’s leaving Louisville to become chief of the Denver Police Department. Fischer says he doesn’t want White to leave, but respects his decision."The chief is a guy that likes challenges. He felt like he’d done everything he could do here. Still felt he had some gas in his tank and wanted to take on another challenge. He feels that challenge is in Denver," Fischer said today. White came to Louisville in 2003 from North Carolina, and was the first chief of the merged city and county departments. Over the past few years, White has been a finalist for chief of police openings in Chicago, Dallas and Atlanta.Fischer says White will remain in Louisville at least through November and possibly longer.