Matt Hart, a prosecutor who led some of the state's highest-profile corruption probes, has suddenly left the Alabama attorney general's office.
Attorney General Steve Marshall accepted Hart's resignation on Monday and thanked him for his service, according to spokesman Mike Lewis. Lewis declined to comment further, including on whether Marshall asked for the resignation.
Hart led the special prosecutions division under then-Attorney General Luther Strange and remained in that position after Marshall took over the Attorney General's post.
Hart led the case against former House Speaker Mike Hubbard, who was convicted on multiple ethics charges. As a federal prosecutor, he led a probe of Alabama's two-year college system.
While known for his tenacity in corruption probes, Hart was sometimes criticized by defense lawyers for his aggressiveness.