Sources say Dan Schwab has exited Fox-owned WFLD-Channel 32 as executive producer of special projects. He had been at the station since 2006. It is unclear whether Schwab will be replaced.

But Schwab's departure leaves a big hole in the station's investigations unit. Schwab's departure follows close on the heels of the exit of Mark Saxenmeyer who had been a WFLD special projects reporter working on investigative segments. Saxenmeyer had been at the station since 1994.

Marsha Bartel, WFLD's former top investigative producer, also left WFLD in August for Tribune Co.-owned WGN-Channel 9, where she is now working with anchor Mark Suppelsa on investigative projects.