Patrons at Lucy's Saloon watched in amazement around 1 a.m. Sunday when the man they say started a bar-clearing brawl began barking orders at police officers who arrived to quell it — and the officers responded.The man turned out to be St. Paul police Sgt. Jon Loretz, the son of Police Chief William Finney. On Monday, the department referred an investigation into the fight to the state's Bureau of Criminal Apprehension to avoid a conflict of interest, Finney said. The chief pledged his department's full cooperation with the agency's probe.The 34-year-old Loretz was at the 601 N. Western Ave. tavern...