Early Monday, a retired Baptist pastor from East Chicago was shot to death on the back patio of the Senior Suites of Rainbow Beach, a senior housing complex near 77th Street and Exchange Avenue. The victim, Allen Smith, 80, often discussed — and sometimes argued — the finer points of Scripture with a fellow resident starting his own ministry. During their late-night talk Monday, the other resident pulled a gun, shot Smith and tried to flee in his motorized wheelchair, according to police and other residents. No charges had been filed by Monday evening, but a surveillance camera captured the shooting, police said.