The National Weather Service said the river had crested in the St. Louis area and the Illinois towns of Grafton and Alton further north.
The latest crime numbers from St. Louis police show overall crime is down 7.7%, but some neighborhoods appear more dangerous than others.
The river reached 35.5, feet 5.5 feet above flood stage, at a gauge near the Gateway Arch early Thursday morning but had fallen about a half-foot by midday.
The shooting happened Thursday night in the city’s Dutchtown neighborhood.
21-year-old Dameion Dorsey faces four charges.
No arrests in brutal fatal beating in South St. Louis